Charging Batteries While Parked

[Nudels2u75]

I have a red key that after you get RV hooked up on electricity you turn this key off and pull it out.

I have #2 Batteries in compartment, #1 for the Generator and #1 to Run RV on dry cell.

Do both of these batteries charge themself setting for long periods of time or do I need to hook up battery tender on them????

Been there for Two months now and Generator did start easily the other day but not sure with extendid periods.

[Festus2]

If you are plugged into 110V shore power, your RV converter will determine the correct charge for your batteries and will apply a charge to them. If you are not hooked up, then you will need some kind of external battery charger to keep them charged - such as a trickle/battery tender. You shouldn't leave your batteries for long periods of time without charging - letting them run down isn't good for them.

[blackty]

Why would you disconnect your battery after you hook up to 120V? The batteries will not charge...Jim

[OhhWell]

That key might just be a disconnect for the 12v aux on the 7pin?