How to build a LiFePo4 battery bank.

pianotuna wrote:
Email them and ask. And their price may be competitive with roll your own.

Na, the whole point of roll your own is to be able to pick the BMS you know is quality and has the features you want, and the manufacture of the cells. the dealer above is only one of many, for some reason there is no extra shipping to the US but there is to Canada, but there are dozens of distributers and lots include shipping. I think the one I found was aout 178.00/280ah cell order of 4, shipped to canada. they drop it to 137/cell if your buying 16, but there prices are always moving a bit so Ill sww what they are when I actualy put my order in. I am just trying to figure out how many I am ordering right now. I need to empty the front storag on the 5th wheel and see how much work it would be to relocate the batteries from the very front to just behind the storage where it is part of the heated basment. if I get 16, I could put 840AH in the fith wheel and 280 in the camper. that woul dgive me roughly 4 times the usable AH in the 5th, and almost three times what I have in the camper. but that could be another thing I have to sort out, I use the camper more in the sholder seasons when I am doing my own thing so even though it has 325 watts of solar a few cloudy days with only 105 usable Ah messes things up when you need the furnace on. so the other option might be to go even and 560ah in the 5th (2.3 times the present capacity) and 560ah in the camper. or maybe I look at getting 20 cells.. I have the luxery of time as the GC batteries in the camper are only 1 year old, and even though the GC's in the 5th wheel are in need of replacment they still hold good enough thanks to the solar, so I can watch prices and buy when they drop again.

Steve

Steve