Lt.Dan
Solar Wizard
I agree the default settings on the Seplos are very poor. I change most of them.This is adjustable. I feel like the default settings are pretty bad on the Seplos BMS. And the documentation leaves a lot to be desired too.
I have some 3 year old 271ah CATL Grade B cells that are now capacity testing 245-250ah, and the Seplos BMS has no problem keeping them within 15mV at 3.5v/cell.
The Seplos BMS is capable of 200mA of balance current, the only factor is how long you give it to balance every day. I try to give my battery atleast 1 hour and it has no problem.