With all the demands put on the battery of a serious off-road vehicle, an auxiliary battery is a sensible accessory. To run that battery you will need a Split Charge System. The T-Max dual battery system automatically links two batteries for charging, but isolates them when discharging. It has a manual over-ride feature, and built in safety protection. The system is a 12 volt system with a 180A Load capacity. Kit includes solenoid, display unit all necessary wiring and connectors and full instructions.