I have installed a new system with 2 parallel Multigrid II , 10 KVA Pylontech Batteries (BMS CAN) , Cerbo (only WIFI) and DVCC, no PV and Genset for charging battery Bank. Cerbo has Color Touch Panel (disable screen after 15 seconds), 2 analog inputs to control relays for genset start stop relay and temperature to control relays for coolers, also ethernet and bluetooth disabled.
I am concerned because DC Power is draining between 30 to 40 Watts from Batteries (confimed Control Panel with amperimeter measurement), without any load, in addition to the multis self-consumption of 16 watts. So on average there is 45 watts being drained from bank , even at no loads, what seem excessive and not what I have seen in other installations.
I tested disconnecting Cerbo relays , but no significant changes show.Appreciatte to hear some idea to solve problem