Battery Log is a free Android application developed by HwangTi. that helps you keep track of your battery information. The app logs the status of your battery and displays it in a list or graph format, making it easier for you to manage your phone’s battery usage. With this app, you can prevent excessive battery level and status changes, such as charging and discharging. Battery Log supports Android OS 2.2 (Froyo) and above, and it is available for free on the Google Play Store.

The app has basic features that allow you to record battery information and view it as a list or a graph. You can also add-ons such as displaying the current battery level in the status bar, receiving notifications when the battery is changed, and starting the log service automatically after booting up your phone. Additionally, you can export your recorded log as a CSV or DB file. It is important to note that the UI in default Holo theme is available for Android OS 3.0 or higher. Also, the app does not support the installation of external memory due to its services. The WRITE_EXTERNAL_STORAGE permission is used to record files on the SD card.