Your motor home is equipped with heavy-duty deep cycle or absorbed glass mat (AGM)
batteries. If the batteries need to be replaced, only deep cycle batteries of the same size and
type should be installed.
Unless a battery has been fully discharged, house auxiliary batteries are normally charged in
one of two ways:
When the power cord is plugged into 120-volt shore power, or when the generator is
operational, the inverter/charger functions as a multi-stage battery charger and will
automatically charge the house auxiliary batteries when required. A bi-directional charge
relay incorporated into the electrical system allows the inverter/charger to charge the
chassis batteries once the house auxiliary batteries are sufficiently charged.
The chassis alternator charging system supplies power to the house auxiliary batteries when
the engine is running and the chassis batteries are sufficiently charged.