I just bought a NEEY active balancer, its 4th gen, 10A and i just connected it to one of my 6 in parallel batteries, set the parameters and switched the balancer on. After a couple of seconds the battery bms lights went out and i had a total blackout as the whole system shut down
After it came back on (with balancer disconnected) i had a high voltage alarm on the consol screen.
The battery i had the balancer connected to now only shows a 25%soc where as before it was showing 80%soc like the other 5.
Have i just damaged the battery, or does the bme recover itself after a couple of full cycles? Or should i reconnect the balancer again but with the batter switch turned off? Please advise how i should use the balancer on a parallel connected active system.
Thanks