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bkf's avatar
bkf
Explorer
Aug 28, 2018

Will bad house batteries cause 120v shoreline power issues?

Hi all! I've got a ~2013 Class A that we've full- or half-timed in for the past almost-6 years. It's got 4 Group 24 (EDIT: actually Group GC2 6-Volt) flooded batteries, with a Magnum charger/inverter....
dougrainer's avatar
dougrainer
Nomad
Aug 29, 2018
12 volt power problems will NOT cause Shoreline power issues. That said, there is a small caveat to that statement. Some RV's have a built in 120 EMS system that monitors and sheds certain 120 appliance loads. NOT ALL 120 loads just 4 to 5 appliances. It takes 12 volts to operate this EMS system. If NO 12 volts or below 11 volts, this EMS will not power up and close the relay's for those appliances. But the REST of the 120 system will power up. Your 120 Transfer relay for Shore and Genset is 120 volt powered. Doug

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