At Big 7 Kits, we build battery cable replacement kits that are tough, reliable, with labeled ends for easy install. Made with premium fine-strand OFC copper wire, heavy-duty crimps, and sealed with marine-grade heat shrink, our kits are built to outlast and out perform. You’ll get everything you need in one kit and a solid warranty to back it all up. It’s power you can trust—built the Big 7 way.