[Peretus]

There is a fellow down in Port St. Lucie Florida that has launched a 100ah LiFePO4 with a 10-year warranty for ~ $550usd each. I saw his shop in person when I purchased some solar from him and was quite impressed with the work they've done and the research and testing that has gone into their products. I had already purchased my batteries by the time I discovered his product or I would have purchased from him: https://outlandsolar.com/

My partner and I live aboard a 41ft sailboat and both work remotely as programmers. I installed 1920w of solar on the boat and get approximately 3.5-4.5kwh per day in output, depending on which way we are oriented while at anchor. I installed 600ah of LiFePO4 batteries @ 12v and when combined with that amount of solar, we have pretty much all the power we need. We frequently cook with an air fryer and have a dishwasher on the boat that we run daily-- all off solar.

[cmason]

Where/how do you fit ~2000W of solar on your boat? That’s impressive.

[Peretus]

I ended up mounting two ~39x70in panels on top of the davits and one on each side of the stern, mounted to the stanchions like 'wings' that can be propped up while at anchor. Strangely enough, I found I was getting so much power from the panels that I don't bother propping them up. Because of the way the panels are mounted (basically at least 1 panel facing the sun at all times), I'm able to get roughly 500w from 8:30am until just after 5pm. I was pleasantly surprised.

[turtlebits]

SOK Battery also has an 100ah battery for $570. They look a little more reputable then a DIY'er, but kudos to him for selling. a product.

[driverdan]

That price is really good. I'm curious what cells they used.

[Peretus]

I'm pretty sure they're Sinopoly cells, but I'm no expert. The BMS they use is quite impressive too, from what I could tell. While I was there in the shop they had a battery cut open and I was able to see inside.