External Backup Battery Charger for iPhone 4S 4G Capacity:1900mAh Output voltage: DC 5.0V

 External Backup Battery Charger for iPhone 4S 4G 

Rechargeable lithium polymer

Weight: 65g

Capacity: 1900 mAh

Cell type: Li polymer battery lithium-ion

Dimension: 12.5×63×16(mm)

Output voltage: 5V

Output current: 500 mA

Cycle life: 500 times

Fuction & character: Enhance signal

Power check & indication: power switch

Signature: Standby Time – Up to 230 hours

         Talk Time – Up to 6 hours

Internet use – Up to 5.5 hours on 3G & Up to 8 hours on Wi-Fi

Caution: Don't expose to high temperatures (60°C)

       Don't disassemble the battery to prevent short cirouit

       Don't expose to fire or burn

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External Backup Battery Charger for iPhone 4S 4G