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Electrical Systems
12-VOLT DC SYSTEM
The majority of your RV lighting is powered by 12-volt electric-
ity. The 12-volt DC system is composed of components that
will operate when the following conditions are met:
• Power is supplied by the tow vehicle alternator when
the engine is running and the 7-way trailer plug is
connected. This powers the RV’s running lights, brake
lights, turn signals and brakes. In addition, the 7-way
trailer plug provides a common ground and a 12-volt
charge line to charge the auxiliary battery.
• The converter will supply interior 12-volt DC power
when the power cord is plugged into campground
power. The converter will also charge the RV battery
in most situations.
• The auxiliary battery powers many interior 12-volt
components including the lighting fixtures, water
pump, 12-volt motors, 12-volt appliances, etc. It also
powers the breakaway switch.
BATTERY DISCONNECT SWITCH
There is a master battery disconnect switch located in the
large, front pass-thru compartment. When the RV is not in use
or storage, shut the battery disconnect switch off and discon-
nect on of the battery cables from the auxiliary battery termi-
nal. Remember to reconnect the battery cable and turn the
battery disconnect switch on when you are ready to use the
RV or perform periodic maintenance checkups.
AUXILIARY BATTERY
Your RV has many 12-volt DC loads. When combined, their
total is more than the converter can produce. High demands
for 12-volt power can be met by an auxiliary battery for limited
periods of time. The 12-volt DC electrical system is designed
for usage with a Group 24 or Group 27 deep cycle battery.
Dry camping
Consider the charge condition of the auxiliary battery when
dry camping. If the auxiliary battery is not being recharged
and power is being drawn from it, it will eventually discharge.
A battery will discharge at a faster rate as its energy level
becomes depleted. It is recommended you plan your electrical
usage accordingly.
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