2 pieces 18650 battery
Input:5V,1A
Output:5V,1A
capacity:4400mAh
1. 1 usb output
2.leading Switching power supply management,reasonable circuit layout.The static power consumption down to 20u A
3.with overcharging,overcurrent,short-circuit ,overdischarging protection
4The charging and discharging automatic recognition
5Material:Alumium high polished plated