Charging house battery
Hey folks! Relatively newbie here. Thanks for your help... 2 questions here for a 98 coachmen c class. 1) QUESTION - can I safely charge the house battery with my external genius charger, while...
Forum Discussion
Best not to run voltage above 15.4 with a portable or any charging source while the battery is connected to the RV. Remove one cable from the battery if you are unsure. Probably fine while connected for normal charging but reconditioning, restore charge or equalizing should be done with a cable removed unless you review and understand the voltage profile of the charging cycle chosen.
Anytime you expect the battery to get charge I would expect the switch should be in the "in-use" position so that battery is connected to the RV systems. Easy to check as you start charging the voltage on the battery terminals will pop up about 1 volt or more. So run through the systems and verify what works.
11-12 volts is not OK. 12.4 to 12.7 is OK. 12.2 needs to be charged. less than 12.0 is in desperate need of charge. 7 - 8 volts? Probably shot and is way over discharged.
Camping off-grid you should look at 2x group 27 as a minimum. A single group 24 is just for transit between pedestals.
If charging with a generator much you probably need to upgrade your converter.
The 12 Volt Side of Life
Anytime you expect the battery to get charge I would expect the switch should be in the "in-use" position so that battery is connected to the RV systems. Easy to check as you start charging the voltage on the battery terminals will pop up about 1 volt or more. So run through the systems and verify what works.
11-12 volts is not OK. 12.4 to 12.7 is OK. 12.2 needs to be charged. less than 12.0 is in desperate need of charge. 7 - 8 volts? Probably shot and is way over discharged.
Camping off-grid you should look at 2x group 27 as a minimum. A single group 24 is just for transit between pedestals.
If charging with a generator much you probably need to upgrade your converter.
The 12 Volt Side of Life
