Traxxas AC power adapter is constructed of plastic "Wall Wart" AC plug-in design Standard ring/tip charge plug. Case size: 51mm(L)x 51mm(W)x 76mm(H) (2"L x 2"W x 3"H). Length of wire: 1905mm (75"). Input Voltage: 110 volts AC. Output Voltage: 12 volts DC. Output MAH: 1000MAH. Polarity: Tip-positive. Ring-negative.