Convenient Size: Measuring 8-1/2 x 7-7/8, the pad is suitable for most standard battery sizes. Easy Installation: Simply place the pad on the battery and plug it into a power source for hassle-free operation. Package included: heater pad x 1 User manual This product is NOT recommended for use with lithiumion batteries, nickel cadmium batteries, with battery case material ABS or for use in an insulated battery box. Place silicone pad battery heater into battery tray. 8-1/2'' X 7-7/8'' Silicone Battery Heater Pad with Thermostatically Control and | Silicone Construction: Made of durable silicone material, the pad is designed for automotive battery he Battery Powered Heater For Camping Facon 8-1/2'' X 5-1/2'' Silicone Battery Heater Pad, 120V, 60 Watts Warmer Battery Thermostatically Controlled: This battery heater pad features a thermostat (on at 0°F, off at 122 °F(50℃) to regulate temperature and prevent overheating. Safe and Efficient: With a power rating of 120V and 60 Watts, it provides reliable heating while minimizing energy consumption. Lead wire length 72