Ampere Test App will help you with following:
* Measure Amp rate of your charge
* Compare different chargers and/or wires in regards to quality and charging.
* Show you statistical remaining use time of common activities like web browsing, call time, etc.
* Measure actual battery use time of any activity or app and save it into your own reference table.
Please refer to the App help page for detailed instructions. App functionality overview video is available at the following URL: https://www.youtube.com/watch?v=frKw6zUv0EE