Re: [RE-wrenches] Need a hand with Sunny Island/Sunny boy AC couple

Hi William, I think you will find that the state of charge discrepancy will be a continual problem to contend with in voltage mode. The state of charge algorithm that the SI uses (and bases all decisions) is complex and not very Lithium compatible when at the ends of the state of charge spectrum

Re: [RE-wrenches] Need a hand with Sunny Island/Sunny boy AC couple

Hi William, You will want to make sure that the eVaults are all running that same firmware and that terminator switches and battery ID #s are set correctly. High SOC and large incoming current could definitely be the reason why voltage skyrocketed up. Best, Chris On Sat, Oct 21, 2023 at 9:39 PM