I have 660ah worth of AGM batteries. I feed them with a group of 5 panels of various sizes. Total output in direct sun is about 17 amps. I use a Trace C40 controller. Have been using that system for about 12 years now.

I won't get into a discussion of battery types etc, but for the most part, get a good 3 stage controller, set it carefully and forget it.

Nomad

wag more, bark less.