Free download Battery Dog for Android APK for Android, PC. Latest version is 0.1.3, update at September 16, 2015
Battery Dog for Android version 0.1.3 is only one variant.
Background service logging the battery state (level, voltage, temperature) into a file on the sd-card (/sdcard/BatteryDog/battery.csv).A simple graphics view is also contained.Details: http://andbatdog.sourceforge.net