Use the Zerostart 3400068 to maintain available cold cranking amps in cold weather by warming the batteries. Improved recharge time.
Silicone pad heater placed underneath the batteries. Silicone material is resistant to battery acid. Slim design to fit in the battery box/tray.
180 Watt 120 Volt, 20-1/2″ x 13.0″, 2-Prong Non-Grounded Plug, for model with grounded plug see 3400038