We have a 44’ center console w a four battery house Bank. It was 4 95amp h batteries and then one was replaced with a 105ah by dealer.
As soon as boat goes off shore power or Genset it throws a low voltage alarm in Garmin at 10.8v. Victron display says 11.2. The batteries test good at 12.9v w charger and batteries disconnected. Same voltage at fuse
Batteries are charged by Victron inverter charger and then feed jnto Cerbro gx.
What could be causing this low voltage alarm? How do I check it charger or Cerbro gx is okay?
