Gerbing 1.4 AMP Battery Kit - 2 x 12V Battery & Charger
Both batteries have a built-in temperature controller with 3 different settings;
Red is 100% heat output, Orange is 66% heat output and Yellow is 33% heat output.. An LED-indicator shows how much power is left in the battery.
Actual run time may vary depending on ambient temperature. Battery capacity decreases in very cold weather, especially if the battery is not insulated and is left exposed to the elements. At less than -5°C a battery may only produce 80% of its capacity. To extend battery life even if the batteries are not used always keep at least 25% charged. In the summer charge the batteries once a month.