This is our amazing, lightweight and long lasting rechargeable power pac for karting racing applications. Its constructed of only the finest materials and cells. All wires and connectors are hand assembled and soldiered in house. Providing the highest quality workmanship and non failure product. It includes a wall charger and a low voltage/ over charge circuit built in to every pack. It is 12 volts of pure Li Ion power and will power any data/gps module that requires a 12 volt source. Its comes set up for the Mychron systems .