Portable battery for iPhone 4

Technical Specification
Capacity: 1100mA
Battery type: Lithium polymer
Power source: iPhone adaptor or Laptop USB
Certificate standard: CE, ROHS
Input voltage: DC 5V
Input currency: 500mAh
Output voltage: DC 5V
Output currency: 500mAh
Colour: Bright Black (classic piano color)
Dimension: 123.5*60.8*15mm
Product Features:
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1. Stylish Design. Compact size. Truly portable.
2. Covering utilize IML craft, aesthetically upgrading and anti-scratched
3. The added function of power on and off, efficiently reduces the power consumption of Apocket itself.
4. High backup battery capacity which can charge iPhone 4 in anytime.
5. Complete protection for your iPhone 4.
6. It combines power storage, power supply function and data transfer together, realizes charging, discharging and data transfer through the Micro data cable at the same time.
7. Take a picture without taking out Apocket.
8. Considerate design of sound-hole attended to every detail.
9. Intelligent protection.
10. In case of overcharge, Apocket will automatically disconnect the power when the voltage reaches to 4.2V.