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Историческую версию Battery Tester можно получить на Android
Battery Tester
Battery Tester is a simple app for testing performance of your battery and comparing different batteries/devices.
You can choose how much to stress your battery by checking the checkboxes. Then you have to run the test for a couple of minutes. The app updates battery's discharging speed and its remaining time every second.
You can stop the battery test whenever you want and finally look at the battery discharging chart.