Zerostart 2800071 Electric Battery Blanket Battery Heater Wrap, 72-Inch | 120 Volts | 80 Watts Thinsulate thermal insulation helps maintain battery temperature in warm or cold weather 72" (183cm) length, 5" (12.7cm) height, 1/2" (1.1cm) width, complete with 30" (76cm) ground cord for ease of use CSA approved blanket warms battery core to 60 Degree - 70 Degree above ambient temperature for quick starts Volts: 120 AC, Watts: 80, Plug type: 120 volt, 15 amp For truck batteries, series - parallel systems