ABS Dual USB Cellphone Fast Charing Battery Power Bank 4400mah

Product Feature:

- Easy to carry and convenient life 

- Build-in 5 piece of AA grade 18650 Lithium-ion battery cell with high capacity

- 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

- The PCB for power bank : 

•   Overcharge protections  
•   Over discharge protections  
•   Short-circuit protections  
•   Stable voltage protections. 
•   Automatically identify the phone current protections.