Mini USB External Battery Power Bank 6600mAh 7800mAh Over 500 Times Life Cycle

Product Feature:

- Circularly light : 

      When power bank charging, LED 1 , 2 , 3 , 4 circularly light on . 

      When phone full charged, LED 1 , 2 , 3 , 4 light off 

- Easy to carry and convenient life 

- Two USB output of 1A and 2A, achieved double charged simultaneously

- Build-in 3 piece of AA grade 18650 Lithium-ion battery cell with high capacity

-  6600mAh / 7800mAh 

-  Portable, practical and long cycle life

-  Advantages :  Capacity to maintained more than83%- 85% 

-  Suitable for Any kind of cellphones and can recharge your mobile phone / Digital device

- It have powerful automatic protection function : 

      Overcharge protections  

      Over discharge protections  

      Short-circuit protections  

      Stable voltage protections. 

      Automatically identify the phone current protections.

- Warranty : 12 months