Best Heated Jacket Battery Adjustable 7.4V 6400mAh (AC401)

The AC401PC-7V6400 battery is 7.4v 6400mah version of AC401 rechargeable li ion rechargeable battery pack by using DLG/HYB/BAK/ATL/CATL/LS or Samsung/LG/Panasonic 3200mAh 18650 battery. Application: heated clothing uk, battery powered heated jacket, battery powered jacket,  other type electric heated wears. 

Battery ID: AC401PC-7v6400
Cell inside: 4pcs li ion 18650 battery
Capacity: 7.4v 6400mAh
Input:  8.4v 3.5A max
Output: 8.4v~6V 3.5A max, Pulse DC output with adjustable output levels, 3 settings, 4 settings or made per request. 
Dimension: 24*72*90mm 
Input/Ouput Terminal: 3.5*1.35mm coax type, 
or designated connector in extension cable.
Weight: 225g
Function Code: PC
Cell options:
PANASONIC NCR18650BD 3200mAh
PANASONIC NCR18650BM 3200mAh
HYB 18650cell 3200mAh 
DLG 18650cell 3200mAh

The AC401PC-7V6400 battery is a PWM control battery which allow user to adjust the desirable output power rate. It comes with 4 settings(25%-50%-75%-99%) or 3 settings(33%-66%-99%) as standard version, . We can make custom setting as request. 
The AC401 battery is designed for electric heated wears application.  It's size is 24*72*90mm , with an ON/OFF switch and a LED light indicator, a 3.5*1.35mm coax type socket connector. 
The AC401 battery LED light can be made to reflect the battery fuel level status by different color. 
The AC401 battery can be made to have different output mode: Constant DC type, Pulse DC type (adjustable pulse settings), or two both.  Asarke Heated Clothing Battery is using Pulse-Width Modulation(PWM) or Pulse-Duration Modulation (PDM) technology which able to control/adjust the output power rate thus achieve desirable heat level in heater. Pulsed DC (PDC) or pulsating direct current is a periodic current which changes in value but never changes direction, pulsating direct current is used on PWM controllers.
The AC401 battery has backwards DC port with aperture to hold the plug which make perfect stable connection. 
By adopting different cells the capacity can be:
14.8V 2200mah/2600mah/3200mah/3400mah
11.1v 2200mah/2600mah/3200mah/3400mah
7.4V 4400mah/5200mah/6400mah/6800mah
3.7v  8800mah/10400mah/12800mah/13600mah