This mobile phone battery tester can test and  analyse all kinds of  cellular phone batteries in seconds. Just put the battery in the battery cartrige, and it will  test for inspecting the battery's quality and performance. just in 15 seconds , you can also run rapid full testing ( requires 2--3 hours ) or standard full testing (requires 4--8 hours) for checking out the over charging protection ,over discharging protection , capacity ,charging time and discharging time of your battery pack , you may also print the inspection report of battery by connecting this battery tester to your computer with appropriate COM port cable.