New. Open box. By Zerostart. Helps maintain battery temperature in warm or cold weather. Prevents the battery fluid from freezing by keeping your battery warm. Warms the battery cord to 60-70 degrees above the atmospheric temperature. Simply wrap around the battery and fasten with zip ties. Dimensions: 28”L, 5”H, 1/2” Thickness. Ground cord is 30” long. Volts: 120 AC, Watts: 50, plug type: 120 volt, 15 amp. Fits batteries: series 22NF, 26, 26R, 51, 51R, 70. NOT recommended for use with lithium ion batteries, nickel cadmium batteries or with battery case material ABS.