Hi Minn, I'm a bit confused. Here's part of your post. "So get 470AH on a 12V setup for ~$500 with cables". At the price that you quoted with 120 bucks per battery, that would indicate 4 batteries but at 235 amp hours per battery, that looks to me like 940 amp hours. I'm new at this. Help me out. Andy
These are 6V batteries so when you make up a 12V battery bank using 2 of them in series the AH does not increase ... it stays at 235AH. If you add another pair to this, connected in parallel with the first set, then it doubles to 470AH.