Did you ever felt, that one Charger/USB cableset charges your device really fast and the other not? Now, you canprove this with Ampere.
Measure the charging and discharging current of yourbattery.
– Alerts on device
– Alerts on Android Wear
The app works on Android 4.0.3+ devices. Not every device issupported because there are devices which lacks an appropriatemeasurement chip (or the interface) and they can not be supportedat all. Please read the list of not supported phones at the end ofthe description.