Savior Heat Spare Battery Rechargeable for Heated Products 7.4V 2200MAh/3000MAh

Capacity: 2200MAh / 3000MAh(Spare battery). Not necessary. The current battery technology is mature, and battery life will not be affected. There is indeed only one sock, because this sock is mainly used to wrap the battery, protect the battery, and prevent collisions.

For 7.4V 2200mah/3000mAh Li-Polymer Rechargeable Battery Heated

SAVIOR HEAT 7.4V,2200MAH Rechargeable Battery For Heated Gloves

WASOTO 7.4V 3000mAh Rechargeable Lithium-ion Batteries

SAVIOR HEAT Heated Gloves for Men Women, Electric Battery

Extra Battery for Heated Jacket Gloves Socks - SAVIOR Heat

8.4V 1.3A SunWill Power Charger for Heated Jacket/Gloves - DayWolf

LONHEO 7.4v Battery Pack 3000mah Rechargeable Battery

SAVIOR HEAT 2200/3000MAH Rechargeable Battery For Heated Gloves

SAVIOR HEAT 7.4V 2200MAH Rechargable Li-ion Batteries

SAVIOR HEAT 7.4V 2200mAh/3000mAh Li-Polymer

Savior Heated Sock Batteries 2 LI Polymer Battery Packs 7.4V

Savior 7.4V Gray Battery Operated Foot Warmer Heated Socks

Spare Batteries Motorcycle Heated Gloves - Rechargeable Batteries

SAVIOR HEAT 7.4V 3000mAh Li-Polymer Rechargeable Batteries for

VULNESS 2200mAh 7.4V Li-Polymer Rechargeable Battery