back-up battery for iPhone 4G capacity: 2000mAh charge time: 4-6 hours Color: blue-black, green black, black

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2000 mA power portable battery for IPHONE 4G.

Batteries: lithium-ion polymer batteriesOutput voltage: DC5V Output current: 500mAInput voltage: 5V.Input Current: 500mA  Capacity: 2000mAhCharging time :4-6 hoursCycle life:> 500

Weight: 85GBody volume: 127 × 63 × 22  (mm)Package Weight: 50GPacking: 100PCS / cartonCarton size : 380 * 215 * 452mmColor: blue-black, green black,  black

2000mA power portable battery back-up battery for IPHONE 4G phone battery