I tried what you suggested and charged each cell with 1.5A and 3.75V for 45 mins and the BMS came back to life. My inverter is charging the 2 batteries in series with no problems although it hovered on 83% and took a day to settle down and hit 100% - I guess that was the BMS regulating things...
I have no problem fixing things if I can and I was 99.9% sure it was just the BMS - I was not expecting to find what I did.
I only opened the one, they are both going back and I'm staying a mile away from this second life lithium scam from now on
I received 2 of these units on Friday direct from Mecer, they state that they are still good for 1500 cycles.
I installed 2 in series for my 24V RCT trolley inverter and all seemed well until the first time the inverter kicked in and the house tripped and the inverter died
I inspected the...