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.
