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I'm building a van solar power system. I'm looking at Ampere Time 200ah 12v batteries. I plan to use three or four of these wired for a 600-800ah 12v setup with a 3,000 Watt inverter. I plan on running an AC unit, 12v fridge, convection cooktop, and convection oven. I also plan on adding a...

Do you have a link?

So I'm understanding correctly, if I wire four 200ah 12v batteries in parallel with a 3000ah inverter... Does the amp draw amount split between the four batteries (250amps ÷ 4 batteries) or does each battery need a 250+amp BMS?

I already own the two 12v chargers from when I originally planned a 12v system. Trying to see if they can be useful before sending them back.

The ole black hole of accessories

This is the thread that I started for my project. Can you recommend any specific larger panels that would be good for a van roof?

I wrote that wrong... Edited it to correct. If I wire four 200ah 12v batteries in parallel to create a 800ah 12v system with a 3000watt inverter... What size does each battery's built in BMS need to be? Inverter would max at 250amps at 12v. Does that mean each battery would need a built in...

Van constraints. I got the smallest 100W panels I could find. With the maxxair fan and AC unit (TBD), I don't see much space for any more panels. Even if I could squeeze another two panels up there, I'd be over the limit on the 100/50 SCC. Less than ideal, but better than nothing. I'll...

I just received four Ampere Time 200ah 12v batteries (the ones with 100a BMS). On all four, the bottom of the case seems to be rounded, where they won't sit flat without wobbling. Is this normal for these batteries, or should I be worried about swollen cells? Thanks!

Ok, I think I'm following. In the 4-battery parallel 12v 800ah scenario, if the max amp draw from the inverter is 250amps, each battery would need a built in BMS over 62.5amps?

They're the Renogy 12v 40a DC-DC. They have two terminals for input and two for output (4 total). Would these work in this case? I agree that a 12v to 24v would be better. Do you have a link for a good one of those?

Would be tough to capture. When I set the battery on the flat ground, it wobbles slightly. The center of the bottom is the point touching the ground. It's a very slight bulge that's consistent on all 4.

That is correct

Would my two 12v isolated chargers be able to charge the two 12v batteries?

Great! I really appreciate the advice.

I'm sure this is a total beginner question, but I'd like to clarify my understanding. I have a Victron 100/50 SCC charging a 12v LPF battery bank. I set the rotary switch to position 7, which should output 14.2V. I isolated the batteries with a switch and hooked up the panels. Before...

I'll pull the paperwork, but assuming they're isolated, would that work?