Rechargeable 7.4V 2200MAH/3000MAH Li-ion Batteries，US Standard Dual Charger，USB Charging Cable，Batteries for Heated Gloves Socks Hats Balaclava Ski Mask Thermal Underwears Bottoms (2pcs Included). Use for Savior Heated Gloves , Heated Socks, Heated Hats，Heated Balaclava Ski Mask，Heated Thermal Underwears Bottoms.

About 2.5-3 hours for fully charged, and working for 2.5-7 hours at different heating levels
Please remove the batteries from heated gloves while charging or washing. Please charge the batteries every six months when not use for good maintenance
CE, UL,FCC Certified, please feel free to contact us for any questions