This simple, easy-to-install kit helps maintain the vehicle's battery charge while in tow, supplying up to 15 amps of current. It also extends battery life by providing a constant maintenance charge (without overcharging) during towing. Helps maintain the vehicle's battery charge while in tow, supplying up to 15 amps of current Extends battery life by providing a constant maintenance charge (without overcharging) during towing Heavy-duty, 14-gauge wire Includes a thermal circuit breaker - no need to hunt down a blown fuse Installation hardware included MODEL NO - 15625