Regency ULTRA, Owner'S Manual

Page: 57 / 85

ELECTRICAL SYSTEM OPERATION REGENCY ULTRA MOTORHOME
E l e c t r i c a l S y s t e m O p e r a t i o n | 51
12-VOLT DC SYSTEM
- The 12-Volt DC power system in your
motorhome consists of the following two
distinct, but interconnected battery systems:
o
Chassis Battery
▪
Located under the driver’s side
cab floor.
o
Coach Batteries
▪
Located behind a panel in the
interior coach doorway steps.
CHASSIS BATTERY
The chassis battery operates the vehicle starter;
vehicle accessories, and; all the vehicle controls on
the instrument console such as the heater fans,
exterior lights, horn, speed control, windshield
wipers, etc.
The coach fuse block and the 40 Amp self-reset
breaker for the solar panel are located inside the
chassis battery compartment. Inside the fuse block,
a cable connects the Solar Panel Fuse.
NOTE: Fuses must be replaced with the same rating
and same type.
COACH BATTERIES
12-Volt DC Power Supply
The coach batteries supply power to all the 12volt DC
lights and equipment in the living area of your
motorhome.
This includes the roof vents, refrigerator (when
operating in 12volt DC mode), 120-volt AC generator
starter, water pump, furnace fan, interior lights,
holding tank, water level gauges, etc.
Battery Maintenance
Automotive batteries store chemicals that react and
convert chemical energy into electrical energy.
Whenever electrical energy resources are used, the
battery drains and becomes discharged.
Applying current to the batteries using the engine
alternator (when the motorhome’s engine is
running) or by using the motorhome
inverter/charger will recharge the batteries and
enable them to continue functioning normally.
NOTICE
An 80-amp self-reset breaker protects the 12-
Volt coach charging system.
NOTICE
Disconnecting the battery cables from the
chassis battery can clear the engine/
transmission logic modules.
These modules will automatically re-calibrate
when you reconnect the battery and start the
engine.