IfLA are the way to build big power storage, cheap. Easy to refurb yourself, can be bought for scrap price, and proven to last decades in solar set ups. They truly are the king of solar.
Going 12v doesn’t make sense, all.the 12v appliances are very inefficient, and you don’t want to be running your home on 12v. The Amp draw would be absolutely horrendous., unless you dont actually use anything in your home.
At 12v, my wife’s oven would be pulling almost 600amps alone. Think about that…lol