Date   

Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Sv Garulfo
 

Hi Paul,

3 Bisol panels: BMO-300
Rated power :300W, 
Rated current: 9.40A
Rated voltage: 31.9V
Short circuit current: 9.75A
Open circuit voltage: 39.7V
Weight: 18.5kg

Mounted in series 

Cabling: ~25m of 10mm^2 between the panels and the regulator. A few feet of 25mm^2 between the regulator and the batteries. I worked some numbers and the theory says wiring in series causes ~5W loss in the cable, parallel would be ~40W.

Hope that helps

Best,
Thomas




On 27 Sep 2019, at 05:24, Matt Salatino via Groups.Io <helmsmatt@...> wrote:

You, sir, are correct!
Amps is an instantaneous measurement of current.
Amp hours are over time.

~~~⛵️~~~Matt

On Sep 27, 2019, at 11:19 AM, hanspeter baettig <hanspeter.baettig@...> wrote:

Hi Matt
only to be correct, mybe you also mix something
Amps are not power
Amps are current
Power (el) is Watt

Regards
Hanspeter
----Ursprüngliche Nachricht----
Von : helmsmatt@...
Datum : 27/09/2019 - 13:56 (MS)
An : main@amelyachtowners.groups.io
Betreff : Re: [AmelYachtOwners] Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Paul, you may be mixing up amps and amp-hours (ah).
Amps is the real-time power.
Ah is over a time period.

~~~ ⛵️~~~ Matt

On Sep 27, 2019, at 3:20 AM, Paul Brown < feeder.brown@...> wrote:

Hello Thomas, as a matter of interest could you please let me know the specifications of solar panels and configuration? 200ah is excellent generation and I’m wanting to double my 600w/24 solar, it produces around 15ah in direct sun light.

Kind regards Paul
Fortuna II 55/17


On 27 Sep 2019, at 5:15 am, Sv Garulfo < svgarulfo@...> wrote:


Solar perf:
I measured 5.5kWh in 24h, so 229Ah @ 24V nominal, but really 200Ah at 27.5V which is more the battery voltage. Interestingly, a slight overcast seems to be beneficial to solar production. 

90%SOC management:
I dug a bit more in the BMS configuration and the MasterVolt BMS triggers events at various SOC; >20%, >40%, >60%, >80% and ‘battery full’ which is 95% by default but configurable to other level. Those events can be used to control other components on the MasterBus, like buzzing the EasyView5, switching the chargers to float phase, or stopping them altogether. 
I need to test that and, in particular, confirm what happens to the chargers when the level goes back below ‘battery full’, but it could be the solution to long term dock SOC management in the MasterVolt ecosystem. 

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 



On Wed, 25 Sep 2019 at 11:21, Sv Garulfo via Groups.Io <svgarulfo= gmail.com@groups.io> wrote:
ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah < Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com





Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Paul Brown
 

Sure, I should say my solar is producing around 15A in direct sunlight, I would like around 30A production which would provide me with more than I would use in a day

Regards, Paul - Fortuna II 55/17


On 27 Sep 2019, at 5:24 pm, Matt Salatino via Groups.Io <helmsmatt@...> wrote:

You, sir, are correct!
Amps is an instantaneous measurement of current.
Amp hours are over time.

~~~⛵️~~~Matt

On Sep 27, 2019, at 11:19 AM, hanspeter baettig <hanspeter.baettig@...> wrote:

Hi Matt
only to be correct, mybe you also mix something
Amps are not power
Amps are current
Power (el) is Watt

Regards
Hanspeter
----Ursprüngliche Nachricht----
Von : helmsmatt@...
Datum : 27/09/2019 - 13:56 (MS)
An : main@amelyachtowners.groups.io
Betreff : Re: [AmelYachtOwners] Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Paul, you may be mixing up amps and amp-hours (ah).
Amps is the real-time power.
Ah is over a time period.

~~~ ⛵️~~~ Matt

On Sep 27, 2019, at 3:20 AM, Paul Brown < feeder.brown@...> wrote:

Hello Thomas, as a matter of interest could you please let me know the specifications of solar panels and configuration? 200ah is excellent generation and I’m wanting to double my 600w/24 solar, it produces around 15ah in direct sun light.

Kind regards Paul
Fortuna II 55/17


On 27 Sep 2019, at 5:15 am, Sv Garulfo < svgarulfo@...> wrote:


Solar perf:
I measured 5.5kWh in 24h, so 229Ah @ 24V nominal, but really 200Ah at 27.5V which is more the battery voltage. Interestingly, a slight overcast seems to be beneficial to solar production. 

90%SOC management:
I dug a bit more in the BMS configuration and the MasterVolt BMS triggers events at various SOC; >20%, >40%, >60%, >80% and ‘battery full’ which is 95% by default but configurable to other level. Those events can be used to control other components on the MasterBus, like buzzing the EasyView5, switching the chargers to float phase, or stopping them altogether. 
I need to test that and, in particular, confirm what happens to the chargers when the level goes back below ‘battery full’, but it could be the solution to long term dock SOC management in the MasterVolt ecosystem. 

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 



On Wed, 25 Sep 2019 at 11:21, Sv Garulfo via Groups.Io <svgarulfo= gmail.com@groups.io> wrote:
ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah < Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com





Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Matt Salatino
 

You, sir, are correct!
Amps is an instantaneous measurement of current.
Amp hours are over time.

~~~⛵️~~~Matt

On Sep 27, 2019, at 11:19 AM, hanspeter baettig <hanspeter.baettig@...> wrote:

Hi Matt
only to be correct, mybe you also mix something
Amps are not power
Amps are current
Power (el) is Watt

Regards
Hanspeter
----Ursprüngliche Nachricht----
Von : helmsmatt@...
Datum : 27/09/2019 - 13:56 (MS)
An : main@amelyachtowners.groups.io
Betreff : Re: [AmelYachtOwners] Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Paul, you may be mixing up amps and amp-hours (ah).
Amps is the real-time power.
Ah is over a time period.

~~~ ⛵️~~~ Matt

On Sep 27, 2019, at 3:20 AM, Paul Brown < feeder.brown@...> wrote:

Hello Thomas, as a matter of interest could you please let me know the specifications of solar panels and configuration? 200ah is excellent generation and I’m wanting to double my 600w/24 solar, it produces around 15ah in direct sun light.

Kind regards Paul
Fortuna II 55/17


On 27 Sep 2019, at 5:15 am, Sv Garulfo < svgarulfo@...> wrote:


Solar perf:
I measured 5.5kWh in 24h, so 229Ah @ 24V nominal, but really 200Ah at 27.5V which is more the battery voltage. Interestingly, a slight overcast seems to be beneficial to solar production. 

90%SOC management:
I dug a bit more in the BMS configuration and the MasterVolt BMS triggers events at various SOC; >20%, >40%, >60%, >80% and ‘battery full’ which is 95% by default but configurable to other level. Those events can be used to control other components on the MasterBus, like buzzing the EasyView5, switching the chargers to float phase, or stopping them altogether. 
I need to test that and, in particular, confirm what happens to the chargers when the level goes back below ‘battery full’, but it could be the solution to long term dock SOC management in the MasterVolt ecosystem. 

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 



On Wed, 25 Sep 2019 at 11:21, Sv Garulfo via Groups.Io <svgarulfo= gmail.com@groups.io> wrote:
ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah < Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com





Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

hanspeter baettig
 

Hi Matt
only to be correct, mybe you also mix something
Amps are not power
Amps are current
Power (el) is Watt

Regards
Hanspeter

----Ursprüngliche Nachricht----
Von : helmsmatt@...
Datum : 27/09/2019 - 13:56 (MS)
An : main@amelyachtowners.groups.io
Betreff : Re: [AmelYachtOwners] Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Paul, you may be mixing up amps and amp-hours (ah).
Amps is the real-time power.
Ah is over a time period.

~~~ ⛵️~~~ Matt

On Sep 27, 2019, at 3:20 AM, Paul Brown < feeder.brown@...> wrote:

Hello Thomas, as a matter of interest could you please let me know the specifications of solar panels and configuration? 200ah is excellent generation and I’m wanting to double my 600w/24 solar, it produces around 15ah in direct sun light.

Kind regards Paul
Fortuna II 55/17


On 27 Sep 2019, at 5:15 am, Sv Garulfo < svgarulfo@...> wrote:


Solar perf:
I measured 5.5kWh in 24h, so 229Ah @ 24V nominal, but really 200Ah at 27.5V which is more the battery voltage. Interestingly, a slight overcast seems to be beneficial to solar production. 

90%SOC management:
I dug a bit more in the BMS configuration and the MasterVolt BMS triggers events at various SOC; >20%, >40%, >60%, >80% and ‘battery full’ which is 95% by default but configurable to other level. Those events can be used to control other components on the MasterBus, like buzzing the EasyView5, switching the chargers to float phase, or stopping them altogether. 
I need to test that and, in particular, confirm what happens to the chargers when the level goes back below ‘battery full’, but it could be the solution to long term dock SOC management in the MasterVolt ecosystem. 

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 



On Wed, 25 Sep 2019 at 11:21, Sv Garulfo via Groups.Io <svgarulfo= gmail.com@groups.io> wrote:
ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah < Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com





Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Matt Salatino
 

Paul, you may be mixing up amps and amp-hours (ah).
Amps is the real-time power.
Ah is over a time period.

~~~⛵️~~~Matt

On Sep 27, 2019, at 3:20 AM, Paul Brown <feeder.brown@...> wrote:

Hello Thomas, as a matter of interest could you please let me know the specifications of solar panels and configuration? 200ah is excellent generation and I’m wanting to double my 600w/24 solar, it produces around 15ah in direct sun light.

Kind regards Paul
Fortuna II 55/17


On 27 Sep 2019, at 5:15 am, Sv Garulfo <svgarulfo@...> wrote:


Solar perf:
I measured 5.5kWh in 24h, so 229Ah @ 24V nominal, but really 200Ah at 27.5V which is more the battery voltage. Interestingly, a slight overcast seems to be beneficial to solar production. 

90%SOC management:
I dug a bit more in the BMS configuration and the MasterVolt BMS triggers events at various SOC; >20%, >40%, >60%, >80% and ‘battery full’ which is 95% by default but configurable to other level. Those events can be used to control other components on the MasterBus, like buzzing the EasyView5, switching the chargers to float phase, or stopping them altogether. 
I need to test that and, in particular, confirm what happens to the chargers when the level goes back below ‘battery full’, but it could be the solution to long term dock SOC management in the MasterVolt ecosystem. 

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 



On Wed, 25 Sep 2019 at 11:21, Sv Garulfo via Groups.Io <svgarulfo=gmail.com@groups.io> wrote:
ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah <Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: Annapolis Boat Show

Patrick McAneny
 

Rob, You did not sign your post or the name of your boat , so don't  know if you are an owner. There has been numerous posts in regards to dinner Friday at 6:30 at Mangia's. The reserved table for 16 is already more than full . There may be another owner , Aras  getting another table nearby that you could join .
Pat
SM Shenanigans


-----Original Message-----
From: Rob Hughes via Groups.Io <svluna01@...>
To: main <main@AmelYachtOwners.groups.io>
Sent: Wed, Sep 25, 2019 5:13 pm
Subject: Re: [AmelYachtOwners] Annapolis Boat Show

So is there any official place and time we can all meet up?


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Paul Brown
 

Hello Thomas, as a matter of interest could you please let me know the specifications of solar panels and configuration? 200ah is excellent generation and I’m wanting to double my 600w/24 solar, it produces around 15ah in direct sun light.

Kind regards Paul
Fortuna II 55/17


On 27 Sep 2019, at 5:15 am, Sv Garulfo <svgarulfo@...> wrote:


Solar perf:
I measured 5.5kWh in 24h, so 229Ah @ 24V nominal, but really 200Ah at 27.5V which is more the battery voltage. Interestingly, a slight overcast seems to be beneficial to solar production. 

90%SOC management:
I dug a bit more in the BMS configuration and the MasterVolt BMS triggers events at various SOC; >20%, >40%, >60%, >80% and ‘battery full’ which is 95% by default but configurable to other level. Those events can be used to control other components on the MasterBus, like buzzing the EasyView5, switching the chargers to float phase, or stopping them altogether. 
I need to test that and, in particular, confirm what happens to the chargers when the level goes back below ‘battery full’, but it could be the solution to long term dock SOC management in the MasterVolt ecosystem. 

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 



On Wed, 25 Sep 2019 at 11:21, Sv Garulfo via Groups.Io <svgarulfo=gmail.com@groups.io> wrote:
ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah <Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Sv Garulfo
 


Solar perf:
I measured 5.5kWh in 24h, so 229Ah @ 24V nominal, but really 200Ah at 27.5V which is more the battery voltage. Interestingly, a slight overcast seems to be beneficial to solar production. 

90%SOC management:
I dug a bit more in the BMS configuration and the MasterVolt BMS triggers events at various SOC; >20%, >40%, >60%, >80% and ‘battery full’ which is 95% by default but configurable to other level. Those events can be used to control other components on the MasterBus, like buzzing the EasyView5, switching the chargers to float phase, or stopping them altogether. 
I need to test that and, in particular, confirm what happens to the chargers when the level goes back below ‘battery full’, but it could be the solution to long term dock SOC management in the MasterVolt ecosystem. 

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 



On Wed, 25 Sep 2019 at 11:21, Sv Garulfo via Groups.Io <svgarulfo=gmail.com@groups.io> wrote:
ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah <Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: [Amel Yacht Owners] Re: Main Sail Furling Motor Issue

Mark McGovern
 

Scott,

I agree 100% that if possible, disassembling the part that you are rebuilding first and checking what is already installed before ordering replacement parts is the best course of action to take for all projects like this.  That is exactly what I did in this case.

I also verified that the parts that I ordered actually fit back together correctly before I made my post.  I have found that you should NOT always assume that what is already installed in your boat is the correct part. Especially if you are NOT the original owner of the boat!  I am the fourth owner of Cara and I have made that mistake on more than one occasion.

And one last caution - don't assume that the information that you get from Amel is 100% correct.  The amount of information that is available to us from Amel as far as assembly drawings, parts lists, etc. is incredible for a boat of this age.  We are extremely lucky to have such great support from Maud, Thierry, and Amel.  However, there is obviously some variation between models and even between hull numbers within the same model that has not been fully documented at Amel.  In this case, the Assembly Drawing and Parts List that a fellow SM owner got from Amel for the Main Furler listed the upper lip seal as 45mm x 58mm x 7mm.  That obviously would not have worked on Cara but would have on Tengah.

Less than 18 month life for a bearing that sees such relatively minimal use is not good!  Makes me wonder about the quality and/or installation of the old bearing.  And makes me worried about the quality and installation of mine!  I will put it on the schedule to pull the assembly down and open it up next year to have a look at the bearings.  If you are interested, here is a link from Timken on bearing failure analysis:  https://www.timken.com/pdf/5892_Bearing%20Damage%20Analysis%20Brochure.pdf  
  

--
Mark McGovern
SM #440 Cara
Deale, MD USA


Re: Annapolis Boat Show

Karen Smith
 

And Harmonie is on the docks at Jabins Yacht Yard and having an open boat for owners current and future on Saturday October 12 from 4-8 or so!

Please rsvp to Kls6917@...
And do come! It’ll be fun to meet more Amelians!

Karen & Bill
S/v Harmonie SM #160




Re: Bow thruster seals

Elja Röllinghoff Balu SM 222
 

He Davi
We are we are in Kalamata at 12.10 and have two on board
When it helps

Best Elja
SM 222 Balu

Von meinem iPhone gesendet


Re: Bow thruster seals

Davi Rozgonyi
 

Hey there put me down for 2 sets also please.... shipping to greece. How do I give you the info and payment? 


Re: [Amel Yacht Owners] Re: Main Sail Furling Motor Issue

Alan Leslie
 

Thank you Mark,

Very impressive

Cheers
Alan
Elyse SM437


Re: [Amel Yacht Owners] Re: Main Sail Furling Motor Issue

Scott SV Tengah
 

I can attest that the mainsail manual furling gearbox's larger, upper lip seal on my Amel54 was 45x58x7 mm OD had a machine shop remove the old bearings and seals and he called me to inform me that there was no way the 45x60x7 mm that I supplied was going to fit. Not believing him, I checked with my own eyes - 60mm was far too large.

If you can remove the manual furling gearbox first, you can probably see the text on your larger, upper lip seal as it's probably in decent condition since it's protected by the V ring seal. The fact that most other owners seem to confirm their OD is 60mm implies to me that you really should check your own seal dimensions before buying replacements.

FYI - my tapered bearing was 80% shattered and had rollers floating in what remained of the grease from the last time I checked it 18 months ago.  I'll be checking the seals far more often going forward.
--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: [Amel Yacht Owners] Re: Main Sail Furling Motor Issue

Mark Erdos
 

Mark,

 

This is awesome. Thanks!!!

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Vista Mar, Panama

www.creampuff.us

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of Mark McGovern
Sent: Wednesday, September 25, 2019 6:30 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] [Amel Yacht Owners] Re: Main Sail Furling Motor Issue

 

Thanks for the information, Olivier.  Much appreciated!

As promised, here is the complete list of parts that I used to overhaul the Manual Mainsail Furler assembly on Super Maramu Cara Hull #440:

 

Bearings (ID x OD x Width):

1 x 32009 Tapered Roller Bearing; 45mm x 75mm x 20mm 

1 x 6005 Ball Bearing; 25mm x 47mm x 12mm

 

Oil Seals (aka Lip Seals): 

1 x Oil Seal; 45mm X 60mm X 7mm

1 x Oil Seal; 25mm X 33mm X 6mm  

1 x Oil Seal; 30mm x 40mm x 7mm

 

V-Ring Seal:

1 x V-Ring Shaft Seal VA-045; For Shaft Diameter 43mm-48mm; ID 40mm; OD 50mm; Width 9mm

 

O-Rings (Cross Section x ID):

1 x O-Ring 2mm x 94mm

1 x O-Ring 1.5mm x 62mm

 

Hardware:

4 x Socket Head Cap Screw; 316L Stainless Steel; M6 x 50mm x 1.0 Thread Pitch

4 x Socket Head Cap Screw; 316L Stainless Steel; M6 x 25mm x 1.0 Thread Pitch
1 x Set Screw; 316L Stainless Steel; M5 x 6mm x 0.8 Thread Pitch


Comments and "Unusual" Tools Used:

  • Bearing Splitter/Puller Kit to remove the old bearings from the shaft.  This was especially needed for removing the rusted tapered roller bearing.
  • Hydraulic Press to press the shaft out of the housing.  It was not necessary as it did not require much force at all but I have it so I used it.
  • Hydraulic Press to press the bearings back onto the shaft.  Again, this was not necessary as I could have tapped them on with a hammer using the installation "tools" below.  In the field you can use some heat to expand the bearings (oven) and some cold to contract the shaft (freezer) to install the bearings.
  • "Tool" for mounting 32009 Tapered Roller Bearing:  Scrap piece of Stainless Steel Round Tube 51mm OD; 47.5mm ID (2.0" x 0.065") about 70mm long
  • "Tool" for mounting 6005 Ball Bearing:  Scrap piece of Aluminum Round Tube 31.8mm OD; 26.5mm ID (1.25" x 0.083") about 50mm long
  • Four (4) longer Socket Head Cap Screw; M6 x 65mm x 1.0 Thread Pitch were used to align and re-install the Delrin piece that goes around the winch socket.  They were replaced with the proper M6 x 50mm x 1.0 Thread Pitch screws.  The Delrin piece is a "press fit" into the furler housing.  Freeze the Delrin piece overnight before re-installing to shrink it and make it easier to re-install.  
  • Anti-seize (Tef-Gel) was used when re-installing the Stainless Bolts into the Aluminum housing to make it easier to disassemble in the future for me or the next owner.
  • The seals that I removed were all single lip (SC) seals. I'm sure you could use double lip (TC) seals for better sealing at only slightly higher cost.
  • All hardware was in good enough shape that I could have definitely re-used it.
  • Duane from Wanderer uploaded some great pics and information here that were a tremendous help to me:  https://amelyachtowners.groups.io/g/main/album?id=84576 


I did not add links to the specific parts that I purchased above since these links tend to change over time.  However, below is a list of some of the sources that I have used to purchase replacement components for this and other projects on my Super Maramu.  Oddly, some of the most affordable places that I found to buy bearings from are in the United Kingdom despite the fact that I live in the USA. Even when I factored in shipping costs.  All of these sites carry at least some of the better quality brands like SKF, FAG, Koyo, Timken, and NSK. I purchased SKF bearings.

 

Bearings:

 

Oil Seals:

 

V-Ring Seals:

 

O-Rings:

www.theoringstore.com (excellent selection and usually a low Minimum Order Quantity)

 

Hardware:


As many of you already know, the last three companies listed (McMaster, Grainger, and MSC) are big online "MRO" companies.  They carry pretty much all of the items you need for this project but for the most part you don't know what brand you are buying and the parts tend to cost higher than they do on the sites that I listed for the bearings, seals, and o-rings.

I hope this helps some of you gather all the parts, tools, and other bits you need to tackle this job.  Good luck!

--
Mark McGovern
SM #440 Cara
Deale, MD USA


Re: Annapolis Boat Show

Mike Ondra
 

Rob,

 

Pat (Shenanigans) is putting together a dinner Friday downtown at Magnia’s. He will undoubtedly have updates on specifics.

 

Some of us may not still be in town Friday evening, or may be interested in getting together several times. It would be nice to put faces to the names we see on this BB, and swap stories.

 

Aletes plans to be anchored at the mouth of Back Creek Thursday, off the Sailing School and Maritime Museum. If there is interest in another Amel gathering Thursday evening also, I suggest Davis’. Its on Back Creek near the Maritime Museum. Please advise.

 

In any case Aletes looks forward to visits from other Amelians at any time.

 

Mike Ondra

Aletes SM#240

Cell for texts: 610-442-7551

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Rob Hughes via Groups.Io
Sent: Wednesday, September 25, 2019 5:13 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Annapolis Boat Show

 

So is there any official place and time we can all meet up?


Re: [Amel Yacht Owners] Re: Main Sail Furling Motor Issue

Mark McGovern
 

Thanks for the information, Olivier.  Much appreciated!

As promised, here is the complete list of parts that I used to overhaul the Manual Mainsail Furler assembly on Super Maramu Cara Hull #440:
 
Bearings (ID x OD x Width):
1 x 32009 Tapered Roller Bearing; 45mm x 75mm x 20mm 
1 x 6005 Ball Bearing; 25mm x 47mm x 12mm
 
Oil Seals (aka Lip Seals): 
1 x Oil Seal; 45mm X 60mm X 7mm
1 x Oil Seal; 25mm X 33mm X 6mm  
1 x Oil Seal; 30mm x 40mm x 7mm
 
V-Ring Seal:
1 x V-Ring Shaft Seal VA-045; For Shaft Diameter 43mm-48mm; ID 40mm; OD 50mm; Width 9mm
 
O-Rings (Cross Section x ID):
1 x O-Ring 2mm x 94mm
1 x O-Ring 1.5mm x 62mm
 
Hardware:
4 x Socket Head Cap Screw; 316L Stainless Steel; M6 x 50mm x 1.0 Thread Pitch
4 x Socket Head Cap Screw; 316L Stainless Steel; M6 x 25mm x 1.0 Thread Pitch
1 x Set Screw; 316L Stainless Steel; M5 x 6mm x 0.8 Thread Pitch

Comments and "Unusual" Tools Used:
  • Bearing Splitter/Puller Kit to remove the old bearings from the shaft.  This was especially needed for removing the rusted tapered roller bearing.
  • Hydraulic Press to press the shaft out of the housing.  It was not necessary as it did not require much force at all but I have it so I used it.
  • Hydraulic Press to press the bearings back onto the shaft.  Again, this was not necessary as I could have tapped them on with a hammer using the installation "tools" below.  In the field you can use some heat to expand the bearings (oven) and some cold to contract the shaft (freezer) to install the bearings.
  • "Tool" for mounting 32009 Tapered Roller Bearing:  Scrap piece of Stainless Steel Round Tube 51mm OD; 47.5mm ID (2.0" x 0.065") about 70mm long
  • "Tool" for mounting 6005 Ball Bearing:  Scrap piece of Aluminum Round Tube 31.8mm OD; 26.5mm ID (1.25" x 0.083") about 50mm long
  • Four (4) longer Socket Head Cap Screw; M6 x 65mm x 1.0 Thread Pitch were used to align and re-install the Delrin piece that goes around the winch socket.  They were replaced with the proper M6 x 50mm x 1.0 Thread Pitch screws.  The Delrin piece is a "press fit" into the furler housing.  Freeze the Delrin piece overnight before re-installing to shrink it and make it easier to re-install.  
  • Anti-seize (Tef-Gel) was used when re-installing the Stainless Bolts into the Aluminum housing to make it easier to disassemble in the future for me or the next owner.
  • The seals that I removed were all single lip (SC) seals. I'm sure you could use double lip (TC) seals for better sealing at only slightly higher cost.
  • All hardware was in good enough shape that I could have definitely re-used it.
  • Duane from Wanderer uploaded some great pics and information here that were a tremendous help to me:  https://amelyachtowners.groups.io/g/main/album?id=84576 

I did not add links to the specific parts that I purchased above since these links tend to change over time.  However, below is a list of some of the sources that I have used to purchase replacement components for this and other projects on my Super Maramu.  Oddly, some of the most affordable places that I found to buy bearings from are in the United Kingdom despite the fact that I live in the USA. Even when I factored in shipping costs.  All of these sites carry at least some of the better quality brands like SKF, FAG, Koyo, Timken, and NSK. I purchased SKF bearings.
 
Bearings:
 
Oil Seals:
 
V-Ring Seals:
 
O-Rings:
www.theoringstore.com (excellent selection and usually a low Minimum Order Quantity)
 
Hardware:

As many of you already know, the last three companies listed (McMaster, Grainger, and MSC) are big online "MRO" companies.  They carry pretty much all of the items you need for this project but for the most part you don't know what brand you are buying and the parts tend to cost higher than they do on the sites that I listed for the bearings, seals, and o-rings.

I hope this helps some of you gather all the parts, tools, and other bits you need to tackle this job.  Good luck!

--
Mark McGovern
SM #440 Cara
Deale, MD USA


Re: Bow thruster seals

JOHN HAYES
 

Hi from Noumea 

We made replacements using wet suit material 

So far worked perfectly across a couple of thousand miles of the pacific

John Hayes 

NGA Waka 


On 26/09/2019, at 5:50 AM, Danny and Yvonne SIMMS <simms@...> wrote:

Hi Bob, facinating memories. It would have been 2009. As to bow thruster. On 299 there is open access from the bow thruster to the bilge beside the forward head. Any leak accumulates there. However I dont wait for that volume. I just have a look periodically at where the thruster tube comes through the hull. If there is the slightest trickle I replace the lip seal. However this time I found some water in the bilge when I went to remove the speed log transducer when it blocked as we sailed through floating pumice from an undersea eruption near Tonga. As i said before, it would be only the third time in 11 years I have done this between haulouts.

Kind regards

Danny

SM 299

Ocean Pearl

On 26 September 2019 at 04:07 rossirossix4 <rossidesigngroup@...> wrote:

Hi Danny,
I've wondered about this.  How do you spot water in the bow thruster?
Bob, KAIMI SM 429

Flashback:  Years ago (12?) our Santorin we were anchored near Ocean Pearl outside the Annapolis boat show.  Earlier I had mentioned that we always leave a note with our names and cell phone numbers near our helm.  Got a call from Danny as we were headed to our dingy from the show....a Pinky Schooner was on a rope rode and wandering around smacking into boats.....Danny had remembered this and located our number and called us.  The schooner had bent our lifeline tubing but we were able to prevent another attack (with his help) and warn other boats!  We've always left our number in the cockpit--actually had a plastic placard made up-- AND we use magic marker to put our cell numbers on the dingy transom.  


Re: Converting my Amel 54 to lithium batteries: what I did, what I like and what I don't like (after one year of full time live aboard use)

Sv Garulfo
 

ML disconnect relay: 
product number 7702B, rated 500A. I have one for each of the 2 batteries. The relays draw no current in ON or OFF state. There are wires to set the relay states depending on what the default state should be. In our setup, the wiring to the battery’s BMS ports is specified explicitly in the documentation so there is no head scratching to do. 


Solar:
We have produced about 100KWh a month historically (~140Ah@24V a day). We are having very good sun at the moment so I’ll measure a max production day today. The max Amps I saw going in was 36A in Curaçao last summer. Our production during the Pacific crossing, Gambier and southern Tuamotus in April-July was pretty poor with cloudy conditions and relatively low sun elevation.

Our wet locker doesn’t get wet. We are lucky to cruise in places were we don’t need foul weather clothes. We quickly vacuum packed and stowed those away. And the Amel cockpit helps with that. 

Yes, breakfast toasts, 2mins of microwave here and there to reheat food, boiling water in 60s or cooking smelly food outside on the portable induction stove. All good examples of how it changes life onboard. 

Long term storage or dock: 
I would say, if we are aboard at the dock, I would let the solar deal with the batteries and use shore power for the others appliances of required. If we are off the boat for a long time, we would just switch everything off and not keep the shore power on. We left the boat in Curaçao for 2months last year and with everything off, the batteries lost less than 5% SOC.

Best,
Thomas
GARULFO 
A54-122
Rangiroa, French Polynesia 




On Wed, 25 Sep 2019 at 09:13, Scott SV Tengah <Scott.nguyen@...> wrote:
Thomas, 

Thanks for the reply!

Regarding your ML disconnect relay, which model are you using? For their disconnect relays, I only see 120amp max
https://www.bluesea.com/products/category/37/Non-Critical_Load_Disconnects

Or did you use this charge disconnect? If so, any idea how I could use it with my system? 500amps may just be enough! The VE.BUS BMS load disconnect sends out 27v (more or less) when all is good and goes to open circuit when there is a problem with the batteries and the load needs to be disconnected. The other option, as someone suggested, is to buy THREE Victron BP-220 and attach one to each 25.8v pair. I presume that would give me 660 amps total?

Regarding your solar setup, any idea how many AH per day you average? Curious how that compares to our setup. We have a bit more rated capacity and we're doing parallel as noted before.  Also, do you have any concerns with your MPPT getting wet? We definitely use that wet locker for...wet items. 

The Victron Quattro also allows you to limit the input on both the 230v inputs. I leave the genset at 50amps but adjust the shore power as appropriate. That was very useful in Greece when we were "plugged into" someone's house circuit. Limiting it to 8 amps prevented constantly tripping their circuit breaker. :)

Regarding your shop vac'ing the engine room, we all get our kicks from somewhere I guess! My joy is in using the electric kettle and the microwave when I'm too lazy to do a proper meal and not having to fire up the genset.

To figure out SOC and charging voltage, I just played around. For example, my Mastervolt Alpha Pro2 set at 27.5v absorption will stop charging at about 90-93% SOC as reported on the Victron BMV-712 monitor. As you probably know, lifepo4 has very stable voltage until you hit the "knees" at near 0% SOC and 100% SOC. So you just have to play with it. I bet at 26.8v absorption, it'd be just about right for long term storage/docking.

I probably sound like a Victron rep, too, but like you, I just continued with choices made prior. My ecosystem lock-in with Victron started with the BlueSolar MPPT, which ironically I don't love!

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: Annapolis Boat Show

Rob Hughes
 

So is there any official place and time we can all meet up?