Power case for iPhone4
Specifictions:
Model Number BTA-1700B
Capacity 1700mAh
Battery category Lithium-ion polymer
Rated input 5V 500 mAh
Rated output 5V 500 mAh
Weight 70g
Size 129*64*17(mm)

Charge method:
Charging method 1: Use the USB2.0 cable and the computer USB port to connect.
Charging method 2: Use the USB2.0 cable and USB charger adapter output port connections, Then AC110~220V power outlet.
How to use?
Charging for iPhone

Steps
(1) slot in for iPhone
(2) switch on button on battery pack
(3) close the roof cover

Cautions:
1 Do not throw battery into the water or make it wet;
2 Do not use or store battery near heat source (like fire or heater)
3 Do not throw the battery into fire or heat the battery
4 Forbid to hammer to trample the battery
5 Forbid disassembling the batter