New to me boat and looking for advice on how to restore power to the smart bms 12/200. Victron smart battery voltage is low and will not power up bms. System has two batteries connected in parallel and a Multiplus 12/2000/80 charger/inverter is connected to the bms. With main AC power supplied, the charger will function but only charge the engine cranking batteries. No charging current is being supplied to the smart lithium ion battery bank and no LED lights are illuminated on the bms.
Do I need to charge the smart lithium ion batteries separately before the system will restore power to the bms and allow the Multiplus to charge the bank?