The oGoDeal Replacement Battery for iPhone 4 is compatible with only the Apple iPhone 4 4GB, 16GB and 32GB model A1332 or A1349 and does not fit the iPhone 4S.
It is a zero cycle and brand new battery that is 3.7V 1420mAh Li-ion and should last for your next 500 cycle times usage. it has Over-Heating, Short-Circuit, Over-Charging & Over-Discharging Protection to ensure longer battery life
The replacement kit comes with a set of tools that will help you in changing the battery easily and without then need for technical assistance.
The Battery Connection