What is battery calibration on Android and why you should do it

What is battery calibration on Android and why you should do it

Android smartphones and poor battery life are a never ending love story. Despite efforts by smartphone companies to improve battery performance through software optimization, adding features like optimized charging, and using power-efficient chipsets like Snapdragon 8 Gen 2, users can’t help short of complaining about the battery life of their Android phone.

Users often complain that their Android device drains very fast or that their phone shuts down unexpectedly in the middle of the day. The reason, very often, is that the battery of your Android smartphone is not calibrated correctly. In such cases, the displayed battery percentage does not align with the actual charge level.


Therefore, in this article, we’ll learn more about battery calibration on Android: why it’s a big deal, its benefits, and we’ll look at three easy ways to calibrate your Android device’s battery.

What is Battery Calibration?

OnePlus 10T review
Source: PocketNow

Android offers an easy way to check the battery percentage of your device. However, prolonged use of the device can cause the battery to deteriorate, resulting in a reduction in capacity compared to when it was new. Unfortunately, many times Android doesn’t consider this degradation, leading to inaccurate battery level readings on your device.

There is a discrepancy between the actual battery capacity and the percentage shown on your device. By calibrating the battery of your Android smartphone, you can force the Android operating system to take this degradation into account and correct the displayed battery percentage. The recalibration process ensures that the device is once again accurately reflecting actual battery levels.

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It’s worth noting that battery calibration doesn’t improve the battery life of your Android smartphone. Instead, it makes sure that the displayed percentage reflects the actual battery condition. If your smartphone is relatively new or you haven’t experienced any irregularities with the battery statistics, it is likely that you do not need to recalibrate your smartphone battery.

However, in case you experience unexpected shutdowns in the middle of the day or a sudden drop in your smartphone battery when it’s around 10%, it might be a good idea to calibrate your battery. Samsung offers an easy way to recalibrate the battery of its Galaxy smartphones. If, however, you own an Android smartphone from any other brand, don’t worry; We have detailed the steps for them as well:

How to calibrate battery on samsung galaxy phones?

LI Samsung Galaxy S23 Ultra - 6
Samsung Galaxy S23 Ultra, Source: Pocketnow / Adam Z. Lein

Here’s how to reset the battery stats on your Samsung smartphone:

  • Use your smartphone until you reach 5% e Not connect to charger.
  • Open the Phone app on your device and enter this code: *#0228#.
  • Now select Quick start > OK.
  • Wait for the display to turn back on, then check if the battery percentage has decreased.
  • Charge your phone to 100%. Not unplug the middle.
  • When the battery reaches 100%, turn off your phone. Now turn it back on and unplug it from the charger.
  • Repeat the above steps two or three times for best results.
  • Reconnect the charger and turn on the phone with 100% battery.
  • After that, open the Phone app and enter this code: *#9900#.
  • Scroll down until you find the “reset batterystats.bin” button.
  • Tap it and restart your phone.

That’s all. The battery percentage should now be more in line with the actual battery capacity of your Galaxy device. If, however, you own a device from a brand other than Samsung, follow these steps:

Three ways to calibrate battery on Android

Manual calibration

The best way to calibrate your Android smartphone’s battery is to manually reset the statistics. Here’s how you can do it:

  • Use the phone until it turns itself off.
  • Turn it back on and wait for it to turn off again.
  • Plug your phone into a charger and Not turn it on. Let it charge in the shutdown state up to 100%.
  • Once the phone reaches 100%, turn it on. The battery gauge is likely to show less than 100%. In this case, reconnect the charger while keeping the phone switched on and continue charging until it shows 100%.
  • Once it reaches 100%, unplug it from the charger and restart your phone. If the battery gauge still shows less than 100%, repeat the above steps until it shows 100%.
  • Again, use the phone until it reaches 0% and turns itself off.
  • Finally, charge the phone again without unplugging it in the meantime, and now the phone will show the actual battery readings.

galaxy s21 inhand host pocketnow
Source: PocketNow

Use a third party app

If you don’t want to go through the manual process, you can consider using a third-party app to reset your smartphone’s battery stats. There are several apps on the Google Play Store that can help with calibration. However, many users have reported that these apps are less effective than manual calibration. Even so, if you’re interested in exploring them before proceeding to manually calibrate, here are some of the recommended apps:

Reset your device

If nothing works, it’s best to factory reset your smartphone. Remember, this should be used as a last resort when all other methods fail. Also, make sure you back up your device before doing a factory reset.

Finally, it is important to note that this process should not be performed frequently, as excessive calibration (full charge and discharge cycles) can be harmful to your smartphone battery. Only rely on the methods mentioned above if your battery is acting strangely. If calibration is required more often, it probably indicates a more serious problem (the battery may need to be replaced).

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#battery #calibration #Android

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