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Old 12-20-2017, 09:59 AM   #41
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Name: Steve
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My (recently purchased) U-haul has an AGM battery mainly to power the vent fan, lights are all individually powered LEDs. There is not charging system at the moment, but I would like to install something. Can I rig the battery to charge off of the vehicle when connected via a 4-pin harness, or would I have to change to a 7-pin harness?
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Old 12-20-2017, 11:06 AM   #42
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You could rig it. At that point it might be just as easy (and cleaner) to install the 7-pin, though.
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Old 12-20-2017, 11:44 AM   #43
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Yeah. I'm leaning toward keeping the 4-pin and running a separate power wire for battery charging. Our other trailers are all set up with 4-pin connectors.

Rigging power would also give me the option of keeping the 12V fridge in the camper instead of the vehicle while on the road.
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Old 12-20-2017, 11:56 AM   #44
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New Hampshire
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Quote:
Originally Posted by Steve Carlson View Post
Yeah. I'm leaning toward keeping the 4-pin and running a separate power wire for battery charging. Our other trailers are all set up with 4-pin connectors.

Rigging power would also give me the option of keeping the 12V fridge in the camper instead of the vehicle while on the road.
Be careful putting your fridge in the trailer. Make sure it is firmly secured so it won't bounce around too much.

Also, make sure the charge connection to your TV is only active when the vehicle is running so you won't drain the TV battery when stopped. Some other members learned the hard way that even getting it installed by professionals doesn't guarantee that.
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Old 12-20-2017, 12:25 PM   #45
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Yep, do what works!

FWIW, many 7-pin connectors are also wired with a 4-pin connector, so you can connect both types. Mine is that way.
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Old 12-20-2017, 03:24 PM   #46
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Either way would work
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Old 12-21-2017, 12:17 AM   #47
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Originally Posted by Steve Carlson View Post
Yeah. I'm leaning toward keeping the 4-pin and running a separate power wire for battery charging. Our other trailers are all set up with 4-pin connectors.
Rigging power would also give me the option of keeping the 12V fridge in the camper instead of the vehicle while on the road.
Wire it up the way it makes it easier and works best for you Steve. I wired up the flat four, round 6 pin & the 7 on my truck so I don't have to use adapters with any of my trailer herd .
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Old 12-27-2017, 07:58 AM   #48
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Trailer: 1975 Scamp 13 Ft.
New York
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I had my 1975 13' Scamp wired for solar and had a battery installed this past summer. The battery is housed under the dinette seat (on the drivers side) and is vented to the outside. So far no problems!
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