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charging leisure battery from the car?
- Thread starter SteveP
- Start date
To get a charge to the battery you need a supply to the fridge, and a permanent supply.
The fridge supply operates a relay in the caravan, which in turn allows the permanent supply to the battery.
Thats been the set up for Bailey since 2004, perhaps earlier.
So assuming you have both those supplies (and returns) to the caravan, and all the fuses are good, (as you say).
Then two possibilities to check, the relay could be faulty, or you could have a blown fuse adjacent the battery.
If you can get on mains hook up, then the fuse can be checked by testing for 13.7 volts at the battery.
The fridge supply operates a relay in the caravan, which in turn allows the permanent supply to the battery.
Thats been the set up for Bailey since 2004, perhaps earlier.
So assuming you have both those supplies (and returns) to the caravan, and all the fuses are good, (as you say).
Then two possibilities to check, the relay could be faulty, or you could have a blown fuse adjacent the battery.
If you can get on mains hook up, then the fuse can be checked by testing for 13.7 volts at the battery.
Brum said:
Thank you for pointing that out
Western Towing needs to update there advice on there web site as we are now in 2011
westerntowing Caravan 12S wiring diagram
There are some changes as can be seen in the link below......
12s wiring code, pre 1999 to british standard & the 12s wiring code, post 1999 to European standard
Wiring code for 12N and 12S and 13 Pin sockets
confused . I was of the understanding that changes to the 12s socket wiring was undertaken august 1998,(as published in the Haynes caravan manual series 3.) Pre 1998 pin 7 was a spare & pin 2 was aux battery charging. post august 1998 pin 7 became the refrigerator earth & pin 2 became spare & pin 4 became dual aux battery charge & 12v live feed
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As Rodger says the fridge need not be on.
But the habitation relay coil circuit must have the fridge supply.
Until the relay pulls in, no power gets to the battery from the permanent supply.
Its a nightmare for fault finding if you have a faulty relay, as my 2004 Vermont had about five of them!
None are identified.
But the habitation relay coil circuit must have the fridge supply.
Until the relay pulls in, no power gets to the battery from the permanent supply.
Its a nightmare for fault finding if you have a faulty relay, as my 2004 Vermont had about five of them!
None are identified.
