8-1
ELECTRICAL SYSTEM
ELECTRICAL SYSTEM
12V POWER SUPPLY
Battery Installation
Your campervan will be fitted with a charging
and power distribution unit.
When installing the leisure battery please
ensure that it is placed on the battery tray
supplied with your campervan. Then place
the tray in the battery locker fitted. Connect
the battery to the clamp fittings connected to
the connection leads within the battery box.
Firmly attach the vent pipe to the battery and
ensure that the pipe exits the vehicle in the
hole provided in the bottom of the battery
compartment.
We recommend that you refer to the NCC
approved battery scheme, which can be
found at www.thencc.org.uk.
Battery Maintenance
Storage
Ensure that the leisure battery is fully
charged before placing the vehicle into
storage.
Check the battery state every month, if the
terminal voltage drops below 12.07V then re-
charging is necessary.
Charging should be carried out in a cool, dry
well ventilated area.
CAUTION: Your Thatcham alarm system is
powered by the leisure battery. Therefore it is
recommended that a battery is installed at all
times. Failure to do so could void your
insurance policy.
Do not place the battery onto cold surfaces
such as concrete as this will affect the
battery’s ability to charge.
Points to remember
• Prolonged discharge causes harmful
sulfation and may damage a battery.
• For peak performance never let a battery
sit discharged for long periods of time.
• Over discharged batteries are
permanently damaged and need to be
replaced.
Note: Do not over discharge the battery. One
of the most common causes of battery failure
is when the battery is discharged below the
recommended level of approximately 12.2v -
ref table. Discharging a battery below this
figure will cause permanent damage.
Overheating and gassing will occur when re-
connected to the mains supply.
Vent Pipe Attachment Location
Pipe Vent Floor Hole
Good
OK
Warning
Damaged
12 Volt Battery State of Charge
12.7V 100%
12.5V 90%
12.42V 80%
12.32V 70%
12.20V 60%
12.06V 50%
11.9V 40%
11.75V 30%
11.58V 20%
11.31V 10%
10.5V 0%
Good: the battery is in good condition and not in
need of charging
OK: nothing to worry about but put the battery on
charge as soon as you can
Warning: get the battery on charge as soon as you
can. Leave it and the battery will be damaged,
possibly beyond repair
Damaged: Replace battery
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