Portable Battery Charger Ultra Mini AA Battery Powered Emergency Cell Phone Charger Travelling Backup Chargers for Android Smart Phones (Black)

The Smallest Mobile Charger
This instant cell phone charger is the smallest one and can be hung up on your pockets, bags, key chains.

The Best Solution for Emergency Power Needs for outside.
With this instant power charger, you do not have to worry about cellphone or power bank running out of power. AA batteries can be found in every store.

Specifications
Input Voltage:1.5-3 V
Output Voltage:5V
Output USB:micro USB
Output Current:500mAh-1500mAh
Support: 2 AA battery
Size:17mm*17mm*17mm
Fits for: Andriod phones or any micro USB port smart phone
Package Includes: Cell Phone Charger

Noted:
1.DC-DC quick charging boosted circuit built-in,use two pieces battery can boosted to 5V,transfer efficiency can reach to more than 98%,Use new 2AA battery can charge the android phone(2500mAh battery)to 40% with in 30 minutes.
2.Built in protection circuit,when the AA battery used or the device charged full,it will stop charge by itself.
3.Only need two pieces 2AA battery that very easy to buy anywhere then can charge your android phone/MP3/MP4/PSP/GPS anytime.