Foot Warmer Socks Battery 7v 2200mAh (AC211)

The AC11NC-7V2200 is 7.4v 2200mAh version of AC211 li ion rechargeable battery pack. Application: battery socks, heated foot warmer, warm winter socks, electric heated socks, heated gloves and socks.

Battery Case ID: AC211NC-7V2200
Cell inside: 2pcs li ion 18650 cell 
Capacity: 7.4v 2200mAh
Input:  8.4v 2.5A max
Output: 8.4v~6V 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-7V2200 is made of DLG/HYB 2200mAh 18650 Battery. Both DLG and HYB are recognized as one of China's leading lithium battery companies whos products include cylindrical Li-ion batteries, high rate RC Li-polymer batteries,  and energy storage and dynamic LiFePo4 batteries. Both DLG/HYB produce very good quality 2200mAh cells that survice more then 300-500cycles. 

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