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 Topic: Clarification of power systems
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15/7/2014 at 8:31am
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there is no permanent power to the van from the car with the 7 pin plug.. you ether need another grey 7 pin plug for van power or the newer 13 pin plug..
the fridge is powered from the car during transit.. not from the leisure battery.. the wiring is set up this way..
a newer van has a mains transformer which can also power the 12 volt system on the van without the leisure battery.. it also charges the leisure battery if one is connected..
a fridge consumes a little too much power and would soon flatten the leisure battery which is why its not permanently connected to the 12 volt system only when the car is providing alternator power..
it all a bit complicated and needs a bit of study to figure it out properly.. :)
trog
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15/7/2014 at 10:55am
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Hi, on early caravans no rear fogs were fitted and pin 2 was used to supply 12v to caravan. however once rear fogs were fitted then pin 2 was used to power them and an extra socket and plug was needed the 12s. If your caravan has no rear fogs than you could use pin 2 to power 12v to caravan but that would be at risk of flattening car battery. but if rear fogs are fitted then law says they have to work from the car. IT would be easy enough to fit an auxiliary battery into the caravan.
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15/7/2014 at 11:07am
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A lot of foreign caravan don't have leisure batteries.
If you usually have EHU then there isn't any need for one
If you do decide to fit one you would need a charger and also somewhere to fit the battery.
saxo1
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15/7/2014 at 3:28pm
Location: south cheshire
Outfit: VW Caddy Maxi
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You don't actually need to use the fridge whilst in transit - unless you're going abroad, though.
I freeze whatever I can for the coming days, chill the rest, and transfer it to the fridge on the day I go, complete with a couple of freezer blocks. This in effect, turns the fridge into a coolbox, and is ok for around 6 hours of traveling for me.
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15/7/2014 at 4:27pm
Location: Llanidloes Powys
Outfit: Skoda Yeti SEL4x4 +Bailey Ranger 460-4
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We do as Jax does, and as long as you keep the door closed it will still be frozen after 12 hours.
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15/7/2014 at 5:31pm
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to get power from the car a live cable needs running from the engine bay to the boot area.. mostly anyway which is why you wont find a live connection wired in on the car socket..
if youwnat car power to the van its best to wire in another plug and socket.. i just did mine my truck didnt have the extra van power socket..
trog
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