Jayco Hummingbird Towables 2019, Owner'S Manual

Page: 89 / 165

Section 6: Electrical System
87
remove the auxiliary battery from your RV, store it in a dry, cool area per the manufacturer’s
instructions.
When it is time to replace the auxiliary battery,
Group 27 or Group 31 true deep cycle
batteries
are recommended to increase run time of electrical components while dry camping
(operating solely on battery power).
Do not reverse the positive and negative battery cables (doing so will blow the reverse polar-
ity fuse(s) that protect the converter).
For more information
Please contact the battery manufacturer for additional information on the auxiliary batteries.
Battery Isolator For Your Tow Vehicle (customer supplied)
You may want to consider the installation of a battery isolator on your tow vehicle as a
convenience feature:

It receives current from the tow vehicle alternator and controls distribution of
energy to both the RV auxiliary battery and the tow vehicle battery.

It serves as a check valve to prevent energy from being drawn from your tow ve-
hicle chassis battery (so you can start your tow vehicle engine).
Your dealer can assist you with the selection, purchase and installation.
Battery Disconnect Switch (if so equipped)
The Battery Disconnect switch is typically located in an enclosed
exterior compartment. The style of the disconnect switch may
vary per model. This switch does not shut off all power, but
only shuts off the 12VDC power to the main 12V fuse panel, and
the interior of the vehicle. Batteries can still be trickle charged
by the converter, and there will still be power to some devices.
Rotating Dial Disconnect Switch
When this switch is ON, there will be a green area showing a
“1” along the top of the switch. To turn the switch OFF, turn it
counter-clockwise until you see the red area along the left side of
the switch showing a “0” (zero).
Lever Type Disconnect Switch
To operate this switch, turn the lever counter-clockwise to turn
off all 12VDC power to the fuse panel in the RV. The lever can
be removed and is equipped with a lanyard to keep the key from
getting lost.
Battery Disconnect
Switches
Switch appearance
may vary by model
Load Center
The Load Center contains
12VDC fuses and 120VAC
circuit breakers for almost all
of the electrical appliances
and circuits in the RV. The
120V main breaker may be
located in this panel and will
turn off all 120-volt power to
the RV. Locations will vary
by model. Refer to the dia-
gram inside the load center
for specific fuse assignments.
Typical Load Center Panel Load Center Panel w/120 volt
Main Breaker
lload center appearance and configura-
tion may vary by model
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