10-5
CLASS C & B
+
MOTORHOME
10.3 12 VOLT DC SYSTEM
The DC voltage system in your motorhome consists
of two separate and yet connected battery systems:
1. The Chassis Automotive battery.
2. The Auxiliary or Coach battery.
10.3.1 AUTOMOTIVE BATTERY
It is used to operate the starter, the automotive
accessories and all the controls found on the
instrument console. Included are the auto heater fans,
the exterior lights, the horn, speed control, windshield
wipers, etc..
It is recommended that the automotive battery cables
be disconnected when storing the unit for an extended
period of time.
IMPORTANT
Removing battery cables from the automotive
(chassis) battery can clear the engine/transmission
logic modules. These modules will recalibrate
themselves once the vehicle is reconnected and the
engine started.
10.3.2 AUXILIARY BATTERY
These supply power to all the 12-volt lights and
equipment in the living area of your motorhome.
Included in this would be vent and exhaust fans,
refrigerator, 120-volt generator starter, water pump,
furnace fan, interior lights, holding tank and water
level gauges, etc.. These batteries may be used to
jump start your engine in case the automotive
battery is dead. Refer to “Jump Starting” in this
case.
This battery is a “deep cycle” RV battery designed to
provide power over a long period of time and to stand
up under the frequent drain and recharge conditions of
a camping vehicle.
Chassis Automotive Battery
Coach Batteries
BATTERY LOCATION
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