Could someone please explain the procedure of updating the firmware of BYD 13.8?
I installed a three phase system of 15KVA Quattro on a parallel system of 5 units 13.8kWH. BYD firmware version: 4.22
Observations: I have a Charge Current Limit (CCL) of 875A
The total charging power displayed on the CCGX is the cumulative of the inverters charging power. (Which is very fine)
Now I installed the same 3 phase system using 4 BYDs but the firmware version is 4.17
Observation: The charging power displayed on the CCGX is the power of a single inverter i.e the charging power of the inverter the CCGX was connected to(Master/L1)
The Charge Current Limit (CCL) displayed on the parameter is also 175A.
This is traceable to the firmware version of the BYD. Any assistance to be rendered to update this BMU will be appreciated. No traceable solution on the internet.