wheeto
New Member
I've encountered a weird problem with the SOK 48V bartery packs, and their use with Victron Cerbo GX.
The system works in Victron's ESS mode to charge the batteries if there's excess solar production and in the absence of enough solar power to discharge them, rather than use grid power, down to a certain setpoint. This works for me perfectly down to around 13%, at which point the BMS commands a charge for a few seconds, then discharge, then charge, then discharge, then ...
Can anyone explain why the BMS is demanding a charge at this point? All of the cell voltages are within normal ranges and the current draw is also moderate. It looks to me a lot like a bug in the CAN protocol, but I can't see anyone else's reports of this behaviour.
The system works in Victron's ESS mode to charge the batteries if there's excess solar production and in the absence of enough solar power to discharge them, rather than use grid power, down to a certain setpoint. This works for me perfectly down to around 13%, at which point the BMS commands a charge for a few seconds, then discharge, then charge, then discharge, then ...
Can anyone explain why the BMS is demanding a charge at this point? All of the cell voltages are within normal ranges and the current draw is also moderate. It looks to me a lot like a bug in the CAN protocol, but I can't see anyone else's reports of this behaviour.
