Buy Rechargeable External Back Up Battery Emergency Power Charger Case Intelligent&Slim 1800mAh Power Bank Pack for iPhone 4 4s online

Features:

1.Aesthetic design,match mobile phoe perfectly,easy to use.

2.IC proetection:aviod the short out,over-charging,over-discharging etc.on the bad condition. 

3.Backup power station have 5 blue LED light,show the dump capacity exactly.

4.Germany PC material,pass the scrape resistance test and have high strength and high tenacity.

5.Polymer battery with intellective management PCB,double the using time.

6.Provides protection for HTC One X, and also serves as a convenient stand.

-Leather case with a battery compliant with CE, ROHS and GOST .

Notes Storage:
Note: you need to charge at least once every three months.