Does Motorhome Battery Charge When Plugged In. Via the on-board mains charger when on hook-up and from the engine-driven alternator when on the road. Plugging your RV into shore power will not charge this battery.
All the fans lamps water pump and the rest still function on the 12-volts DC in just that DC electricity is supplied by the converter rather than the batteries when plugged in. Plugging your RV into shore power will not charge this battery. If you leave your RV battery plugged in after its fully charged it can deplete the cells electrolyte levels.
At this early you could probably notice the importance of a house battery in your rig.
But there are cases when there might be a problem with your power source converter or battery and your RV battery actually does not charge. If you decide to unplug your RV take your batteries and move them somewhere warm. Most RVs charge the chassis battery when plugged in but not all do. Regardless of the brand of motorhome the brand and type of convertercharger installed and whether or not any disconnect devices are employed its obvious the batteries are not receiving a charge while the coach is plugged in to shore power.
