2012 newest extended portable backup battery for iphone 4 with lovely design and rechargeable li-on battery pack.

                            2012 newest extended portable backup battery for iphone 4

Specification:

Capacity: 1,800mAhInput voltage: 5VOutput voltage: 5V, 500mAhInput current: 500mAMaximum output current: 1.5AWorking temperature: -10°C to 40°C Backup battery for iphone 3/4/4S

Advantages:

Automatic protection when chargingRechargeable li-on battery pack, recycle use for protect the environment. Electricity-saving functionHigh efficiency of power conversionLong lifespan cyclePortable and convenientEco-friendly and economic efficientSecurity and stability, long life, higher capacityFull Body Coverage for iPhone 4G /4SNon slip comfort grip, perfect backup battery for iphone

How to charger your phone:

Use USB 2.0 cable and plug to computer USB portUse USB 2.0 cable with USB charger adapter (AC110 ~ 220V power outlet) 

  

2012 newest extended portable backup battery for iphone 4