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 Topic: Charging Caravan Battery with Adapter
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02/11/2023 at 6:21am
Location: Dartford Kent
Outfit: VW T6 conversion
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If you’re asking whether it’s possible to use a 7-pin socket on a vehicle to operate the battery circuit on the caravan: no. This is known as a 12N socket, and has no power line and only runs the vehicle lights. This is why the 12S socket was introduced, back in the day; the twin 7 pin system is very much a legacy arrangement, 13 pin being the current standard. (I’ve just come across a US site which says that they have power on their 7 pin sockets. Another country, they do things differently there!)
It looks as if you’re going to need a charging relay on the car, that only operates when the engine is running. This is known as a switched circuit, and is there to prevent a discharged caravan batttery exhausting the car battery while stationary. There will also be an unswitched circuit, and a reversing light pin. This will then need to be attached on the car to either a 12S socket, or a 13 pin socket using an adapter.
If you’re planning on using pitches with hookups, so long as the caravan battery and onboard charger are in good condition, you’ll get a better charge that way. Hope this helps.
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via mobile 01/11/2023 at 10:36pm
