Connecting Electric Trailer Jack Directly to 12V Battery

Updated 08/04/2015 | Published 08/03/2015

Products Featured in This Question

Ring Terminal - 12-10 Gauge Wire - 3/8" Ring ID

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$1.67

Wiring Kit for Hydrastar Electric Over Hydraulic Actuators

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Question:

I have a RV electric trailer jack. I want to connect it to a 12 volt battery. What do I need to do that?? Thanks

asked by: Bill A

Helpful Expert Reply:

To hook up a trailer jack to a 12 volt battery you need to make the connection from the jack's power wire to the positve post on the battery using a ring terminal, like part # DW05705-1.

If you don't already have a battery on the trailer you can add one. You'll need to power it by connecting it to the trailer connector's 12 volt power circuit. You can use part # HS381-9000 if you need to add a 7-way on the trailer. You'll also need a 7-way connector on the tow vehicle, which I can help you with but I'll first need the year, make, and model.

expert reply by: Victoria B