The Ampere Battery Info app allows you to easily measure the quality of your chargers. It does that by connecting your phone to the charger and measuring the voltage and amperage. The app also provides all the information about your battery. 

What is Ampere?

It is a unit of measurement for electric current. It is used to measure the voltage of a battery or a DC current source.

The app allows you to monitor the real-time power consumption of your device. The information is displayed on a graph. You can also view the information for the last hour, day, week, month and year.