Electric Foot Warmers Battery 3v 6800mAh (AC211)

The AC11NC-3V6800 is 3.7v 6800mAh version of AC211 li ion rechargeable battery pack. Application: heated clothing, heat holder socks, hot socks, rechargeable heated socks, battery powered socks.  This NC battery has no adjustable setting, it is good for heated socks like ActionHeat 3.7V Rechargeable Battery Heated Socks. With 6800mAh~7000mAh in most compact size it will allow you to Stay Warmer & Enjoy Outdoor Winter Activities Longer Than Ever Before. Other Application: heated womens coats, heated silver shoes, electric heated coats, heating winter jacket, battery heated socks. 

Battery Case ID: AC211NC-3V6800
Cell inside: 2pcs li ion 18650 cell 
Capacity: 3.7v 6800mAh
Input:  4.2v 2.5A max
Output: 4.2v~3V 2.5A max, Constant DC.
Dimension: 41.5*73.5*21.5mm 
Input/Ouput Terminal: 3.5*1.35mm coax type, 
Weight: 118g 
Function Code: NC

The AC11NC-3V6800 is made of Samsung/LG/Panasonic 3400mAh/3500mAh 18650 battery. 
Cell options:
Panasonic NCR18650B 3400mAh 
Panasonic NCR18650GA 3500mAh 
SAMSUNG INR18650-35E 3400mAh 
LG INR18650F1L 3350mAh 
LG INR18650MJ1 3500mAh 

The AC211 battery is designed for electric heated socks, electric heated insole, electric heated glove insole application.  It has small size 41.5*73.5*21.5mm, a 3.5*1.35mm coax type socket connector through extension cable, other connector type can be made same way.
The AC211 battery has no LED light, no button. It is installed protection pcb only. Plug in and the battery will produce output without other operation. It's a very basic battery with best price. 
Typical Capacity Option: 
7.4v 2200mAh/2600mAh/3200mAh/3400mAh
3.7v 4400mAh/5200mAh/6400mAh/6800mAh

We make li ion battery packs for all heated wears in all size option, search (model number) to find more information in our site.