A free program for Android, by Braintrapp.

The Ampere is a tool for measuring the current that is used to charge a battery. This current is dependent on the voltage that is applied to the battery and the type of battery that is used. The more knowledge we have about how a battery charges, the better we can design a battery that will charge more efficiently.

The Ampere app has a list of different chargers and USB cables that are supported by your device. The app can also measure the current that is drawn by the device. When you open the app, you will be presented with the list of different devices that you can use to measure the current. After selecting your device, you will be presented with a screen that will allow you to set the voltage and the current that you want to measure. After that, you will be given the option to start the measurement. You will then be presented with the results of the measurement in mA.