That's good to know...but is sort of low for my needs. 40A for two batteries is 5 sun hours. My panels produces way more than 40A per hours...so I'm sorta loosing quick charging...I do have the batteries on my EPEVER 40A CC…I would say this is the first negative that I see with these SOK batteries....but for now it does fit my needs and I'm still very happy to have these at this price. I've been running my entire office off these two SOK 100Ah (x2) batteries without having to tap into Shore Power.
you're mixing terminology so I'm confused (amps, amp-hours, etc).
At 40a, the batteries go from 0 to 100 in 2.5 hours. Your EPEVER 40A can't go higher than 40 and if you're running two of these, that's only 20 per battery (5 hours). you can go to 80 (40 per battery). So I don't see the problem.