Heat Suit Battery Power Bank 7v 3400mAh (AC221) 

The AC221DM-7V3200 is 7.4v 3200mAh version of AC221 li ion rechargeable battery pack made of 2pcs Samsung 18650 battery,  LG 18650 battery, Panasonic 18650 battery or other optional 18650 battery. The AC221DM battery is a Dual Mode rechargeable battery which has constant DC output and pulse DC output both made of 2pcs 18650 battery.  Application: cordless heated jacket, heated hunting pants, heated riding jacket, heated fleece vest and other 3v heated wear products.  Battery ID: AC221DM-7V3200 Cell inside: 2pcs li ion 18650 battery Dimension: 23*48*70mm Capacity: 7.4v 3200mAh Input:  8.4v 2.5A max Output: 8.4v~6V 2.5A max, Constant DC and Pulse DC output both.  Input/Ouput Terminal: 3.5*1.35mm coax type,  or designated connector in extension cable. Weight: 113g Function Code: DM(PC+CC) In constant DC output mode it provide 8.4v~6v continues current works with 7v electronic devices, or works wit…