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External Battery Pack for iPhone 4 /4S
This External Power Battery Pack for iPhone 4 /4S is an ideal and powerful companion for your endeared iPhone4/4S. It acts both as a protective case and also as an excellent external battery pack. The potent built-in 1900 mAh Lithium-ion Polymer battery can be engaged using the On/Off switch button at your will and it is able to provide additional talk time by up to 6~7 hours for your iPhone4/4S and stand time by 5 days. This case is stylish and portable with textured Black non-slip finish: 2 in 1 battery & Docking as well as provides full body coverage for your iPhone4/4S.Features:• Smart Battery
• Non slip comfort grip • Automatic tests function • High-quality Li-polymer Cell•Extended battery pack - 1900 mAh• ON/OFF Button for Optional Power Output ControlFour LED lights indicates the power level remaining the case (Each light represents 25% of remaining power)• Sleek, Low-Profile design; Rechargeable up to 1000 times
Specification:
---Output Voltage: DC 5V
---Output Current: ≤700mA(0.7A)
---Input Voltage: 5V
---Input Current: ≤1000mA(1A)
---Battery capacity: 1900mAh
---Charging time: 4 to 6hs
---Working temperature: -10°C to 40°C
---Storage temperature: -20°C to +50°C
---Standby time: >380hs
---Call time: over 6.5hs at 3G/over 12hs at 2G
---Surfing time: over 6.5hs at 3G/over 7hs at Wi-Fi
---Music playing: over 28hs
---Video playing: Over 8hs
---Size: 125 x 66 x 15mm
---Weight: 66.5g
---Compatible with iPhone 4/4S
---Petite,convenient,easy to use,high capacity
---USB cable charge,4 LED power indicators
---Color: Blue Green White Black Purple
Photos:
Color available
Packing
External Battery Packs for Iphone 4/4s