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Feature

This is a dual USB Smart Power Bank 4X 18650 Battery Charger Box for mobile devices
It takes 1-4 replaceable UNPROTECTED 18650 Li-ion batteries to power and recharge your USB devices
It has a large green LCD display to show the status of each battery cell inside
It will cut off the circuit automatically if any battery cell is wrongly installed or become defective. It will cut off circuit if data cable or mobile device become short-circuited
It provides extra backup power to all devices that supports USB charging. E.g. iPhone, Android, tablets, MP3 players, GPS units, etc

Description

Features:
* Provides extra backup power to all devices that supports USB charging. E.g. iPhone, Android, tablets, MP3 players, GPS units, etc
* This unit takes 1-4 replaceable UNPROTECTED 18650 li-ion batteries to power and recharge your USB devices
* Powerbank can be recharged via micro USB port
* Charging management protection
* Processing monitoring protection
* Reverse battery protection
* Over temperature, over currency, over voltage, over discharging and short circuit protection
* After place or replace batteries, please charge the power bank to activate the output circuit

Specifications:
* Batteries are NOT included
* Current Output: 2A
* Input volatge DC: 5V
* Maximum supported battery length: 70 mm
* Output volatge: DC 5V

Package include:
1 x Mobile Power Box (Batteries in the pictures above is not included)
1 x MICRO USB Cable