Recommended Wiring Kit for Auxiliary Battery Maintenance Charge From Truck 7-Way Trailer Plug

Question:

I need to wire my 12 volt 9 ton winch with aux . battery to in conjunction with your 12 volt trailer aux tongue hoist . Can you direct us to the best way to wire using the 12 volt constant 7pin connect on the gm truck

asked by: BRUCE M

Expert Reply:

I recommend the Roadmaster Battery Charge Line Kit # RM-156-75 for your application. This kit will give you everything you need to allow up to 15 amps from your truck's battery to be used to maintain the battery for your winch. This will give you everything you need to add that power to your truck's 7-way plug for your winch battery connection. If you want this charge to only happen when the truck is on, then I recommend installing a solenoid in line like # PK5231201 that requires that aux power wire connection to the center terminal from your ignition for power so your vehicle battery doesn't get drained and leave you stranded.

expert reply by: Jason S