Actually, if you want a (relatively) cheap battery bank for solar, find a place to sell you used golf cart batteries. They are typically 6 volt, but are deep cy

Actually, if you want a (relatively) cheap battery bank for solar, find a place to sell you used golf cart batteries. They are typically 6 volt, but are deep cycle (big and heavy). Wired up properly, they can work really well, and cost a fraction of what new batteries would.