What I did was because I never wanted to have a dead battery for the winch. I put a solenoid under the hood of my truck directly to the battery. and ran welding cable back to the rear bumper. Then installed a 50 amp two pole anderson connector plug on the rear bumper with the corresponding plug on the trailer. Start the truck hit the switch for the solenoid and you have all the power you need. Cost is about $140 and never needs replacing. I also cut the clamp ends off a pair of jumper cables and put another anderson connector on. Now I can jump start something without opening the hood.