for iphone4 external battery
Battery and protector
2 in 1 function
Capacity:1500mAh

for iphone4 external battery 

Accessories:

USB Charging Cableprotective film

 Specifications

Model: NP-IP4BCapacity : 1500MAHOutput Voltage:5VOutput Current: 500mAInput Voltage: 5VInput Current: 500mACharging time: 3 to 4 hours

 

Performance Description

Battery and protector 2 in 1 function, solve the signal problem perfectlyWith data transfer capabilities,connectivity with the iTunes sync PCWith intelligent switches, extending built-in battery life, more secureAccurate display of power, low battery LED flashes when reminderAll-inclusive design, and perfect for Phone4

 

 

Standby time: ≥210 hours

Talk time:  3G network over 5 hours / 2G network of more than 10 hours

Internet Time: 3G network over 4.5 hours / Wi-Fi more than 7 hours

 

Music Play: More than 28 hours

Video Play: More than 7 hours