charging coach batteries

[BABY GIRL]

the coach batteries in the side of my 1985 minnie winnie, how do i know they charge. how do they charge. do i put a charger on them?

thank you
Jeff

[DaveVA78Chieftain]

Coach Battery Charge:
1) When driving: the coach batteries are normally charged by the engine alternator via the DUAL-NORM-MOM switch on the dash. DUAL=charge both engine and coach batteries; NORM=Charge engine batteries; MOM=Engine start assist by using the coach batteries to help start the engine.
2)When camping:  The 12VDC converter provides for both all 12VDC coach loads as well as recharge the coach batteries.  The 12VDC converter is powered either by the 110VAC Shore Power cable or the on board 110VAC generator.  Selection of which 110VAC source is used is either by a manual transfer switch in the power ceneter OR the Shore Power cable is plugged into an outlet normally located in the Shore Power cable storage locker.