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How To Calibrate Your Device's Battery and Achieve Longer Battery Life

Get back to your true battery life in just a few steps.

Published onJanuary 10, 2012

With great power comes great responsibility! And in the Android Community, with great power comes great loss of battery life. If you’re like most smart phone addicts, the battery meter is often half empty (or less). And to make matters even worse, over time, your battery life will probably get worse and worse due to the degrading health of the battery itself. Therefore, I have two solutions for you today. One option is less time consuming than the other, but both options have shown great battery life increases for tons of users. So without further adieu, the 2 best options for calibrating your phone’s battery:


Option 1: Battery Calibration (Root Required) – NeMa

This option is extremely simple given that your phone is already rooted. If your phone is not rooted, go ahead and root your device or procede to Option 2. If your phone is already rooted, simply follow these 4 easy steps:

  1. Download Battery Calibration by NeMa for free from the Android Market.
  2. Plug in your phone and charge to 100%. (“It’s suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break.”)
  3. Open Battery Calibration on your Android 2.1+ device and press the “Battery Calibration” button.
  4. Unplug your phone and enjoy a better battery life!
That was easy right?

Option 2: (No Root) Physical Battery Calibration

This option is also very simple, but at the same time, a little more time consuming. If you have a rooted device, Option 1 is definitely the way to go. However, if you don’t know what “root” means, stick with Option 2 and go check out the root section of Android Authority.

1.Turn your phone on and charge it for 8 hours or more.

2.Unplug the charger.

3.Turn your phone off and charge it for one hour.

4.Unplug the charger.

5.Turn on the phone and wait 2 minutes.

6.Turn your phone off and charge it for one hour.

7.Unplug, turn it on and use as normal. Your battery life should now be a lot better.



Well folks, that’s it and that’s all! After completing one or both of these solutions, you should be seeing a substantial battery life increase. Keep in mind that a “calibration” is a comparison between measurements. Essentially, you are trying to achieve a “perfect world battery life”. Otherwise known as the battery life that a new phone would achieve. Therefore, if you are calibrating your 1 month old Galaxy Nexus, don’t expect any huge change on the battery life unless your battery was calibrated wrong within that month.

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