Battery Harness — coleman pop up parts Battery Harness. Connects the 12 volt battery to the factory harness on most Coleman and Fleetwood pop ups. Complete with 40 amp breaker. Add a 15 amp breaker for smaller box units. Black wire is positive and white wire is negative. pop up camper wiring | eBay www›Search›pop up camper wiringFind great deals on eBay for pop up camper wiring. Shop with confidence. Skip to main content. eBay Logo: Shop by category. Shop by category. Enter your search keyword RV, Trailer & Camper Parts; Brand. see all. Warranty. see all. Guaranteed Delivery.