Teun,

You're using the VEConfig software to adjust the inverter low voltage cutoff? I have successfully changed that on the Inverter tab "DC input low shut-down". Then you have to "Send Settings" to the Quattro otherwise it won't save them.

If you are still having problems, I have a contact with Victron that is quite responsive. Maybe Dutch people don't like other Dutch people? ;) We've had over 30 emails back and forth. FYI he suggested 20v as the input low voltage cutoff and 21.5v as the input low restart.

Additionally, try here. This may be even better. They're almost as helpful as the AYOG :)

https://community.victronenergy.com/index.html
--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com

As many of you know, I've been running lithium for 18 months full-time now, mostly in the tropics. We have 960w solar on the arch. We considered the Quattro 8k and decided not to for a few reasons:

1) The 5k barely fit. See attached photo. The 8k is 50% heavier at 45kg.
https://s3-us-west-1.amazonaws.com/groupsioattachments/29189/33126257/47890/0?AWSAccessKeyId=AKIAJECNKOVMCCU3ATNQ&Expires=1588706340&Signature=FwI3DgnIE%2FEbyKAFUU1yWCrzB9g%3D&response-content-disposition=inline%3B+filename%3D%2220190907_103355.jpg%22

2) I have run it for 18 months now with the vast majority of the time in tropical heat. The admiral has been known to run the boiler, microwave and toaster at the same time. That is nearly 5000 watts total, around 200amps. We have never had issues with power tapering. This is a rare load and even when you have it, it won't be for too long. Additionally, the engine room is often not that hot at anchor, given we don't run the generator often and the surrounding sea (25-28c on average in the tropics) cools the room quickly. We've even figured out how to run the scuba compressor on inverter.

3) The 5k has 30w no-load power consumption. The 8k has 60w no-load power consumption. 30w/25.6v = 28.125 additional amp hours per day for having the 8k over the 5k. Given my 960w solar arch produces about 200-250AH per day, choosing the bigger inverter means 10% of the daily solar output is "wasted" just to keep the 8k turned on. That said, I've figured out how to put in a simple switch to turn off/on the generator without having to run the Phoenix panel, which consumes power. But even then, you're still burning over 2.3 amps just keeping the 8k on.

See #50689  

In fact, I tweaked the jumper settings in the amel installed MasterVolt 800w inverter (under the chart table) to reduce no-load consumption (5w now) and try to run it whenever I need to use less than 800w.

4) The 5k requires TWO PAIRS of 50mm^2 wires for a 0-5m run. The 8k requires TWO PAIRS of 70mm^2 wires for the same run. I can't recall the exact specs for the original Amel installed wires, but we couldn't use them (we had Dolphin 100amp and 40amp chargers) as they were too small for even the 5k. We ended up using the Dolphin 100amp charger wires to connect the second charger (Victron Skylla-i 80amp) For us, we had to break out the epoxy between the passage and the engine room. It's actually not that hard - you can do all of it from the passage. Just remember to reseal it.

I admire your goal of trying to minimize genset usage. We've focused on the same as we're not-so-closet environmentalists and since installation of all the parts, have focused on reducing the "background drain". On the Atlantic crossing we ran the genset 60-90 minutes a day, with both the 120amp Quattro and the 80 amp skylla chargers running. On our recent Panama-Hawaii 4848nm unplanned passage (thanks coronavirus!) we ran it 45 minutes every 2nd day. That was all from optimizing consumption.

The little things add up.

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

Oliver,

Just watched your video - that insulation replacement seems like a big job! But the results seem to make it worth it?

One question for you about the big hole on the bottom for the compressor lines: did you fill that big hole in with something? Otherwise it would seem that all of the cold air would flow out of it.

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

Paul,

I installed a Xantrex LinkLite – it uses all the same wiring and shunts as the Amel OEM.

http://www.xantrex.com/power-products/power-accessories/linklite-battery-monitor.aspx

With best regards,

Mark

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

Hi Dan,

How difficult was it to install the install of the Victron BMV-712 Smart Battery Monitor ?

How difficult was it to do the wire run from the shunt to the new monitor ?

Do you have any suggestions in doing this upgrade project ?

I hope this finds you both well.

Thanks Paul

Paul in sv Aramis, SM 444, currently in the San Francisco Bay, California

Hi Teun,

What a strange place to have this Inverter.  I vaguely remember this was the spot where Amel would put the isolation transformer if that was requested. As Mohammad said before the "normal" place for the inverter is behind the genset. This Victron inverter may have been to big for that spot though. Personally I find these huge inverters scary, the power-draw is immense and they really kick the batteries hard when running for longer time. Also the electronics are under tremendous load, not the easiest thing in a marine environment. Even the 3500 I'm considering for Luna seems high to myself.
With Lithium batteries this may be easier but I'm not at that point yet.

Regards,

Arno Luijten
SV Luna,
A54-121

Hi Mohammad,

Consider the Mastervolt, power derating only starts at 40 C (Mass Combi Pro). Don't get me wrong I don't really like Mastervolt as a company but they do turn out some solid products. The Mass line of products is quite nice, maybe because they don't make them themselves, some other company in the Netherlands actually designs and manufactures them.

Regards,

Arno Luijten
SV Luna,
A54-121

Hi Mohammad,

By the way, adding/replacing cables between the battery compartment and the engine room is very difficult. Amel sealed the duct between the two compartments with epoxy. This duct sits in the passage to the back under this hump at the bottom on the Main Cabin side.  It can be done but you will need to be extremely agile to get to the place behind the fuel tank to open up the duct. Alternatively you could route the cable via the ceiling in the Galley. In that case I would run a set if thinner cables instead of one thick one. That is easier to accomplish.

Regards,

Arno