By the way it was in parallel with its twin. battery bank two is working fine but battery bank one would not charge. the voltage on battery bank one when i first noticed it was at 32v, it is now at 12.5v
No the panel backlight will not come on. But I turned off the solar charger and got the reading on the battery voltage over a few seconds reading 6.6v, 7.8v, and 8v. The battery will not charge from the solar charger even though the charger input readings are 20kw and 13.1amps.
I purchased the Epever. i guess the next step is to hook it up to the charger and my laptop. Not sure if this will help. the only way i have to check the battery is with my volt meter.
I think tomorrow i will open the battery case to see if the BMS is hooked up.
I have a 48v 400ah battery bank i purchased in China. The BMS is not working and the system digital information screen back light is not working. I was told by the battery manufacturer to take the battery bank to zero to reset the BMS and purchase a 0v activation charger that works with the...