4000 mAh Portable Power Bank

Caractéristiques :

Portable External Battery For Mobile Phones
CE, ROHS, FCC certificates
Universal applicability
USB output, can be applied to the smartphone, tablet, Galaxy Tablet, Mobile phone, MP3, MP4 and other equipment
Red light is state of charging, blue light is working, visible and intuitive and clear.
Use 18650 samsung batteries cell, replaceable batteries, economical and practical.       
Support synchronously charging and discharging function, mobile charging power supply and power supply

Features:

Intelligent Power Indication.
Over-charge protection, discharge protection, over-current protection, short-circuit protection, explosion protection.
High-efficiency of power conversion.

Specifications:

Capacity : 4000 mAh, Lithium Polymer Battery Cell
Battery Type : Samsung Bettery
Efficiency : 80%-85%
Charging Time : 6-8 hours
Standby Time : 72hours-120hours
Battery Life Cycle : 550times
Input : USB5V1A
Output : DC5V 1A
Weight : 160 g
Dimensions: 175 x 65 x 7.5 mm                          
Working Temperature : -25°C~55°C