Battery Drain Analyzer is a sophisticated app that tracks your battery and power usage behind-the-scenes to give you an idea of what’s using the most juice. Think of it as Android’s built-in battery usage app on steroids; it offers tons of statistics and numbers that should satisfy even the most demanding power user.
As the name implies, the app will analyze app and power usage and let you know which apps are draining the most power, or if it’s even an app that’s causing battery drain. The Analyzer screen shows what percentage of app drain is caused by what system activity, whether that’s your screen, applications, phone idling, WiFi or Bluetooth radios, etc. Below that, it shows which applications are consuming the most battery, including the infamous Android OS battery drain, rated by percentages. If Facebook is using 65% of the battery drain caused by apps, for example, you’ve got a pretty good idea of what’s causing your power usage.
Aside from the basic analyzing, the app also offers a handful of numbers and graphs that can be extremely helpful. There are several graphs that show a history of your battery life, like how long your battery lasted every day for the past two weeks. For example, you can see that you managed to go 30 hours on a single charge on Wednesday but only 20 on Thursday, so whatever you were doing on Wednesday was easy on your battery. Information like that is extremely handy for adjusting your usage habits to maximize battery life.
Another really great feature is the battery life estimation the app will display. It takes into account your usage habits and the current running apps and active radios and gives you a rough estimate of how long your battery will last and how quickly it’s discharging. This can be handy to see if your battery is going to last you until the end of the day or if you’re going to need to find a wall outlet in the next few hours. It also offers profile switching which will control certain radios, like Bluetooth or WiFi or cell radios, and application syncing depending on which profile is selected. A day profile may sync less often but keep Bluetooth on for connecting to a headset, for example, to conserve battery.
Overall, it’s an excellent, fully-featured app that’s great for any power-user’s toolbox.
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