Russell -Battery Case for iPhone 4 / 4S
Super Capacity in compact size
Here's a battery case with super capacity -2400mAh, which guarantee to double your iPhone 4 / 4S battery life. It's only 65g, in 18.4mm thickness. This is the best battery case for those who have extremely lots of calls and spent long time for gaming and surfing.
.Super High capacity. Extend talk time up to 10 hours on 3G network.
.Easy To use, plug and play, auto sleep.
.With On / off button and LED power level indicators.
.Able To charge and sync at the same time.
.Over Voltage protection; over current protection; over charging protection; short-circle protection; thermal protection
.Apple Made-for-iPhone approval
.A-Grade battery cell, Seiko chipset inside
.Capacity: 2400mAh (Li-polymer battery cell)
.Input: 5V / 500mA, Output: 5V / 1A (max)
.Net Weight: 65g
.Dimensions: 127 * 62 * 18.4mm