Battery for iPhone 4

Batteryfor iPhone 4 1. Ultra-Slim: 15 mm. The thinnest battery in the world. The 15 mm is almost chose to the thickness of phone 4, MP1280 is the intimate accessory for your phone. 2. Only supply power for phone 4 working and without charging for its internal battery. Preserves the iPhone 4 battery. Equipped with a replaceable efficient lithium polymer battery pack, myPower for iPhone 4 preserves the iPhone battery by bypassing the battery and directly powering (rather than charging) iPhone 4. When plugged into a USB power adapter or computer USB port, myPower for iPhone 4 will simultaneously charge the connected iPhone 4 battery. 3. Low Consumption, High efficient of 95%, Provides Maximum Power. Designed with intelligent circuitry,battery for iPhone 4 provides an unheard of 95% efficiency which means the condensed lithium polymer battery provides maximum power output without adding substantial weight or size to iPhone 4. Inherent with this advanced battery technology are all the key battery safety features, including built-in protection from over current, overcharging, over discharging, overheating, and short circuiting.Battery for iPhone 4, depending on the battery module, almost doubles or more than doubles the iPhone 4 battery. 4. Apple certification “ Made for iPhone” Reliable and safe lithium-polymer battery.Works with iPhone certified. Specification: 1. Extend the talking time for iPhone 4: 6 hours 2. Battery cell:Li-polymer 3. Battery capacity: 1500mAh 4. Input voltage/current of micro USB port: 5V/550mA 5. Output voltage/current: 5V/500mA 6. ON/OFF switch:“ON”: Offer power to iPhone 4;“OFF”: shut power off 7. Charging time: 3 4 hours 8. Weight : 49g 9. Dimension: 125.8*61.6*15 mm