External battery case for smart phones

External batteries, 1/ capacity:2000mAh, 2/ portable charger could charge all iphones and Ipad,other mobile phone

 External battery case for smart phones

External battery charger for Iphone 4S

Provides 360° protection for Apple's iPhone 4 With extra 2,000mAh power to extend the standby and talk time Patent registered slider design Four level power indicatorWorks with Apple's iPhone 4 Battery type: lithium polymer Capacity: 2,000mAh Weight: 85g Standard voltage: 3.7V Input voltage: 5.0V DC/1.0A Output voltage: 5.0V DC/0.5A Working temperatures: -5 to 40°C Storing temperatures: -15 to 50°C Charging time: 4 to 6 hours Lifespan cycle: ≥500 times

Features:

1) Long cycle life

2) Good safety performance

3) Low self-discharge

4) Enviroment friendly

5) High capacity and different capacity according to your requirements

6) Broad woking temperature range

Battery Quality:

1) Cells: A grade cells to make sure batteries in high and full capacity

2)Protection: Dual IC chips,that can anti-shortcircuit, anti-overcharger, anti-overcurrent, anti-overload

3)Compose Type : Injection Technology to make battery more stable

4)Certifications : CE,,FCC, RoHS,ISO9001

5) Long life cycly, No memory, environment friendly

Advantages:

1) High energy density

2) High working voltage for single battery cells

3) Pollution-free

4) Long cycle life

5) No memory effect

6) Capacity, resistance, Voltage, platform time consistency is good

7) With short-circuit production function, safe and reliable

8) Factory price& High quality

9) Good consistency, low self discharge

10) Light weight, small size

External battery case for smart phones