This Dual pack of Powersheer^®Micro Rechargeable Li-ion batteries are compatible with Fieldsheer Standard Heated Socks, Thermal Heated Socks, and Merino Heated Socks. Control your heat levels on your socks by a press of the battery button to select between High, Medium and Low heat. Recharge using the included Micro USB to USB cable for hours of heat.

Specifications:

• Two batteries & Micro USB Charge Cable included
• Powersheer^®Micro Battery
• Output Rating(DC Plug): 3.7volts, 2200mAh
• Charging Input(Micro USB): DC 5volt, 1000mA
• Charge Time: 4-5 hours*
• Size Inches: 2.8in x 1.2in x 0.83in
• Size Metric: 71mm x 31mm x 21mm
• Micro USB Charge Cable: 1m
• USB Split-Y cable with Dual Micro USB connectors

*When using 5V 1A USB wall charger