0 of 1 people found the following review helpful
Not enough instruction for use,
Verified Purchase(What is this?)
This review is from: Black 3000mAh External Power Rechargable Battery Pack Charger Charging Backup Battery Case Cover For iPhone 4S 4 (Electronics)
This is a great idea but have found charging it and using it impossible, it's not at all clear when you are ment to use which charging point and why, I just could not work it out so it's back in the box in my drawer. There was no instructions with this cover just a very unclear picture trying to explain on the back of the box in Chinese, so unless they improve this I do not recommend buying this case/battery back up.