[Rebelbase]

I may bite the bullet and go with LiFePo4.

[RFEngineer]

“I may bite the bullet and go with LiFePo4.”

You can completely discharge them and still get thousands of cycles.

I put together a system similar to yours. 8 panels, 300Ah LiFePo4 battery. I can charge via genset as well if there isn’t enough light.

My basic goal was to be able to run a fridge and freezer indefinitely, and I am able to do that, no problem.

[Tell It Right]

IMHO, the decision between lifepo4 vs lead battery(ies) is based on how often you use the trailer. If you use it almost daily (read: drain the battery almost every night), then lifepo4 is better. If use the trailer maybe one weekend per month then it may not be worth the cost for lifepo4. Just get a lead battery knowing it will need replacing every few years.

I'm very happy with my 18 lifepo4 batteries totaling 92kWh storage. But that's for a 2,300 sq ft all-electric home and charging an EV. LOL Which is way more discharge, and more frequently, than you probably intend.