Gerbing 7V 7000mAh Extended-Life Battery with Remote & Charger Kit

QUALITY HEATING SYSTEM: Patented Microwire Heating Technology EASY-TO-USE: Includes 7.4V Rechargeable Battery & Charger WARRANTY: Gerbing Lifetime Warranty on Microwire Heating Elements POWERFUL WARMTH: 135 F Maximum Heat with simple temperature Control settings LONG LASTING WARMTH: Battery runs for 8hrs on low power, 6hrs on medium, 4hrs on high and 2hrs on extreme