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Re: Shore power contactor burnt out
Eamonn Washington
Hi
The aft lazarette shore power breaker is mounted in a plastic purpose made housing with just the breaker switches protruding. The manual transfer switch is housed in the original housing of the original contactor, after a little cutting. No, I was not able to source a galvanic isolator here but it is on my to-do list. What size galvanic isolator is required? With 20A breakers I suppose it makes no sense to go for a higher rated galvanic isolator for the earth connection. -- Eamonn Washington Travel Bug Super Maramu #151 Currently in Cagliari, Sardinia, Italy.
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Re: Amel is going lithium
Porter McRoberts
We run in series as it’s a bit far from the mppt 90v to the mppt
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On Aug 6, 2019, at 9:53 AM, Scott SV Tengah <sv.tengah@...> wrote:
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Re: Amel is going lithium
Scott SV Tengah
Hanspeter,
Things must be lost in translation for both of us. My mind was blown when learning about lithium and after a year aboard with it, I can attest that many of the advantages are real. I'll complete that writeup soon and hopefully it will answer all your questions. My system isn't perfect and I'm hoping some of the shortcomings can be solved by the group's collective brainpower. -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Amel is going lithium
Scott SV Tengah
I am not familiar with the sizing on the Mastervolt inverter/chargers, but for Victron their 8000va model was too heavy for my piece of mind.
Agree with you on keeping the genset. I rarely run it but I'm happy we have it. It's not always sunny. :) -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Amel is going lithium
Scott SV Tengah
Porter,
You've astutely pointed out one of the major advantages of Lifepo4. Charging your lead (?) batteries between 80-100% maximizes their longevity but results in them having trouble accepting even mid-day full current from your panels. With lifepo4, it can accept full current until high 90s state of charge. As a corollary, we have 220v chargers that total 200amps. The batteries accept the full current up until 95-98% and that's why our genset runtime is so short. Add in the charging efficiency with only 3% lost through heat vs. 20%+ on lead and it makes a huge difference on both genset usage and solar charging efficiency. PS - are you running the 3 panels serial or parallel? If you aren't sure, you can check the voltages on the numerical data. -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Amel is going lithium
Hey Scott, thank you and I was figuring a 5000w inverter upgrade (Maybe a 7500w when available)to run all from 24v when possible, I too have a Bauer junior. I guess then genset is still a great reliable generation item and needed for those jobs, but’s it is great to live off batteries most of the time and look forward to the day when it’s easy.
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Nice sharing with you and thanks for the advice Regards Paul Fortuna II A55#17
On 6 Aug 2019, at 8:36 pm, Scott SV Tengah <sv.tengah@...> wrote:
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Re: Amel is going lithium
hanspeter baettig
Scott
sorry You completely misunderstand me and I do not like your message towards me!Thats not the way we comunicate within this forum ! I only ask you how you can handel your battery capacity. I‘m an owner of a SM Nr.16 since 25 Years and I never heard from other Amel Owners, even not from Amel , what you ! can do with your Lithium Power Bank anyway fair winds and good luck Hanspeter SM16 Tamango 2 Trinidad ------ Original Nachricht ------ Am Dienstag, 6. Aug, 2019 um 18:20, Scott SV Tengah schrieb: Hanspeter, Given the tone of your message, I get the impression that you're quite argumentative. I'm not interested in getting into an internet urination contest, so I'll just provide data and verifiable facts for you. First, you are close to correct in the water maker calc. Yes, I make water on battery alone, generally with a fully charged battery. I am not on the boat now - damn hurricane season, but the manual tells me the 24v duo 100 motor draws 600watts. Lithium fully charged is 3.6 volts per cell and has a very small voltage drop on such a small load given my 450ah/24 bank. Even the windlass doesn't result in a huge voltage drop. People who have not used lithium are amazed when they see that. So we'll be conservative and use your 25 amps per hour. I average about 80l/hr from my Duo100. That's 11.25 hours to fill up an empty water tank. The Peukert effect is negligible on a lifepo4 battery, another surprise for many so 25*11.25 = 281.25AH. Given my battery bank is 450AH, the battery bank still has 60% left after making water for almost half a day. For the solar panels, I'll just attach the latest data output from my Victron solar charge controller. I use LG Neon2 320w panels x 3. Fair winds, -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Amel is going lithium
Porter McRoberts
Here’s the lithium difference: we also have about the same solar 3x LG315s. We’re in FP. Nice sunny days.
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Attached is our last month. We just can’t absorb the energy like a lithium, we go between 100 and 80% and run the generator about a half hour a day in average. See attachment
On Aug 6, 2019, at 6:31 AM, Paul Brown <feeder.brown@...> wrote:
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Re: Amel is going lithium
Scott SV Tengah
Paul,
At the risk of costing you some money on upgrades, I will say that being able to run all the 220v appliances without the genset is one of the biggest advantages of having lithium. Especially the washing machine as it takes such a long time and has such variable draw but a low average draw, so you're unnecessarily adding runtime to the genset unless you batch it with a lot of other uses. We have the Victron Quattro 24v/5000va/120amp. At 5000watts, more or less, the only 220v appliance that won't run is the Bauer Junior II scuba compressor. And that's only due to the startup current required. I can probably start the scuba compressor with the genset and continue with the inverter. With your mostly Mastervolt setup, I'd suggest sticking to Mastervolt so the batteries can talk to the inverter. But I'm sure Mastervolt has a similar product. The danger of having that much inverter capacity is that people sometimes think it's really like being at home. The admiral has been known to run the electric boiler, induction stovetop and microwave at the same time on battery/inverter. With respect to the batteries, it's only around half the recommended continuous draw, but it still makes me cringe! -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Haul out preparation - use of a dehumidifier
Although not available everywhere, we’ve used paraformaldehyde crystals. Learned about them from a Canadian friend, when we were in Trinidad.
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In US, brands are Sun-Pac, Mildew-zone. There are others. Exudes a poison gas. Not only prevents mold, but kills any existing mold, insects, vermin. Bugs and rodents will not come in the boat. When you return, just open the boat and air it out for a few minutes. We kept the boat sealed up, storing in Guatemala for a few off-seasons. ~~~⛵️~~~Matt
On Aug 6, 2019, at 11:47 AM, Theo s/v Paloma <sailingpaloma1@...> wrote:
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Re: Amel is going lithium
Scott, unfortunately my aircon and washing machine and water maker does not work of my inverter otherwise I’d love to, maybe I can upgrade my inverter and wire them in to the 720ah lithium 24v system
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Regards Paul
On 6 Aug 2019, at 6:21 pm, Scott SV Tengah <sv.tengah@...> wrote:
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Re: Amel is going lithium
Scott SV Tengah
Paul,
You should try to run one of the AC units on battery for a few hours one night. Once the room is cooled (aft cabin in our case), the compressor duty cycle is 25-35% in my experience. Of course, we don't set it to upper-Siberia temperatures. :) -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Amel is going lithium
Scott SV Tengah
Hanspeter,
Given the tone of your message, I get the impression that you're quite argumentative. I'm not interested in getting into an internet urination contest, so I'll just provide data and verifiable facts for you. First, you are close to correct in the water maker calc. Yes, I make water on battery alone, generally with a fully charged battery. I am not on the boat now - damn hurricane season, but the manual tells me the 24v duo 100 motor draws 600watts. Lithium fully charged is 3.6 volts per cell and has a very small voltage drop on such a small load given my 450ah/24 bank. Even the windlass doesn't result in a huge voltage drop. People who have not used lithium are amazed when they see that. So we'll be conservative and use your 25 amps per hour. I average about 80l/hr from my Duo100. That's 11.25 hours to fill up an empty water tank. The Peukert effect is negligible on a lifepo4 battery, another surprise for many so 25*11.25 = 281.25AH. Given my battery bank is 450AH, the battery bank still has 60% left after making water for almost half a day. For the solar panels, I'll just attach the latest data output from my Victron solar charge controller. I use LG Neon2 320w panels x 3. Fair winds, -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Haul out preparation - use of a dehumidifier
I used cat litter with great success when I was leaving my ex-Lagoon 450 in New Zealand off season. I bought several aluminum disposable cooking pans, filled them with cat litter and placed them in each room.
I also opened every drawer and cabinet so that it airs. All hatches and doors were closed and locked. Theo s/v Paloma Amel 50 #18
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Re: Amel is going lithium
hanspeter baettig
Hi Scott
amazing so on your electric solar system you produce an average of 8.3 A on 24 v ! even by night! Tell us what special kind of solar panal you use ! And btw you use the Duo watermaker (60 or 100 l/h ? )only via the batteries? No engine or genset on ? The watermaker use about 25 a at 24 volt. Really I‘m interested to know more about your new tecnical installation again amazing ?!? regards Hanspeter SM 16, Tamango 2 Trinidad by Peake PS Dear Bill R. please comment ------ Original Nachricht ------ Am Montag, 5. Aug, 2019 um 23:04, Scott SV Tengah schrieb: [Edited Message Follows] Porter,I have the Duo and generally make water using the batteries. Something about running the genset, putting all that soot in the water and then sucking it up to make water makes me nervous! I run the water maker as 220v now and then to keep things from corroding from non-use. How many Ah do you get a day from your wind generator on average? We get about 200-250AH a day from our solar panels and it's nearly enough. I'm at the point now where I worry that we're not using the genset enough and it'll develop problems from non-use. But as they say, energy is like money. You think you'll be happy with X but then you get to X and you think, but if I only I had Y more, I would have enough. :) -- Scott 2007 A54 #69 SV Tengah www.svtengah.com
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Re: Mango Sail sizes
Gerry,
I like all Amel models, including the newest 50 and 60. Some models are an evolution of previous Amels, and some models break new ground like some of the first models Henri Amel made. Sometimes when someone explains the difference between one model and the next, the listener can get the unintended impression that one is better than the other. You are correct, this forum is certainly not the place for this subject. If you want to have a private discussion about the differences, or about anything, contact me at bill"at"yachtschool.us. --
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Re: Haul out preparation - use of a dehumidifier
Marina Seca in San Carlos, Mexico has some great storage tips for all their customers, including being sure seal all open through hulls with something like bronze wool to keep the bugs and vermin out while allowing any water to weep out. So if you run the dehumidified drain tube through the depth sounder hole, be sure to wrap it snugly.
Craig SN68
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Re: B & G Hydra System For Sale
Seckin Barlas
Hi Elaine;
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I would be interested in BG hydra system. Can you pleae give me info about the price location…etc Seckin SY HAYAT SM76
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Re: Amel is going lithium
Scott,
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No I don’t run any appliances that require the genset usually until the batteries require charging then I make water etc, of course if I require the aircon I need to run the genset Regards Paul
On 6 Aug 2019, at 2:50 am, Scott SV Tengah <sv.tengah@...> wrote:
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Re: Haul out preparation - use of a dehumidifier
Herbert Lackner
Hi Lucy,
it is better if you take out the depth-sensor and run a hose from the dehumidifier through the hull. I would not recommend draining to the bilge if nobody will check the bilge for such a long time. herbert SN120 KALI MERA, Mazatlan Mexico.
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