– Package Includes Battery and Charging cable. No adaptor.- Enjoy up to 12 hours of long-lasting warmth thanks to the increased capacity of the 5500mAh, which delivers performance equal to market-leading 3.7V 10,000mAh power bank with higher efficiency.- The battery can be charged via directly plugging to Computer or directly charge with wall charger (Not Include)-Charge be used to charge your mobile phone or other smart device. This is 7.4V Battery for ARRIS 2022 Heated Vest and Heated Jacket