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[Off-Topic] [Tech n Tweaks #1] All You Need To Know About Battery Calibration!

2019-02-03 10:02:01
1280 14

Hey, Mi Fans!

We have heard a lot of things about Battery Calibration in our smartphones. Everyone has their own theories, few suggests to calibrate the smartphone battery once every month, while some suggest to do it once a three a month. But what actually Battery Calibration is? Let's try to understand it better in this thread!

What Is Battery Calibration?

Let me take it as the simplest way possible. Each battery has a smart chip. That chip sends a signal that indicates what the current level of the battery is. Your Android smartphone takes this signal and displays it on your screen. The chemical element of the battery (lithium or nickel) is what stores energy. The chip tries to read how much of this energy the battery has stored. For the most accurate reading, the chip needs to “learn” the battery’s capacity. If the battery drains completely to 0 percent, then fully charges to 100 percent, the chip then learns the capacity.

As you use the phone more, the battery drains and recharges at multiple points. This multitude of recharges leads the chip to miss its accurate reading. In short, at this point, the chip and the chemical capacity are not calibrated. To get an accurate idea of the battery’s capacity, you need to calibrate or re-calibrate it.

How Do You Calibrate A Battery?

It's a very simple task!

  • First, drain your phone’s battery completely. Don’t charge it at any point while it’s draining. Let the phone keep working till it shuts itself off.
  • Once the phone has shut itself off, restart it so it shuts off again. Even though the battery was at 0 percent, it has a few reserves left. Now, while the phone is off, charge it to 100 percent. It’s safe to use quick chargers for this, but make sure you hit 100 percent.
  • Once it’s fully charged, unplug it and boot your phone. Android might not say it’s at 100 percent, and that’s okay. In that case, plug the charger again and let it get to 100 percent. Then unplug it.

This cycle of full drain and recharging lets the chip calibrate its readings with the battery’s charge cycle.

What Does Battery Calibration Do And Not Do?
Battery calibration is purely about an accurate reading of battery life. It does not improve battery life. Battery calibration does not indicate the health of your Android battery either. Wear and tear on a battery does affect its calibration, so it’s a sign of how much use it’s been through. But battery health doesn’t come purely by the amount of usage.

Deleting BatteryStats.Bin Doesn’t Do Anything!

Another myth about battery calibration, especially with Android phones, revolves around the BatteryStats.Bin file, found deep within the file system. You will find many fake battery calibration apps that claim wiping this file helps improve battery health. This is a flat-out lie.

Google engineers have confirmed that the BatteryStats.Bin file has “no impact on the current battery level shown to you [and] no impact on your battery life.” In fact, the file resets every time you unplug after a full charge. In short, wiping BatteryStats.bin does not improve battery life or even calibration.

Why Battery Calibration Is Usually Unnecessary?
With all this said, the vast majority of Android phone users never need to calibrate their battery. The smart chip, plus Android’s own smart ways of reading battery statistics, combine to give you an accurate reading of your battery.

These smarter algorithms and sensors have made it possible for Android (and iOS) to calibrate the battery without needing the full discharge and charge cycle. The phone can re-calibrate the battery based on when it hits the “low battery” mode, and if you charge it fully or almost fully.

Such instances happen with daily usage anyway, so you won’t need to calibrate your battery.

When Should You Calibrate A Battery?

The only time you need to calibrate a battery is if you get inaccurate readings. For example, if your phone shows 30 percent battery life, then immediately drops to 5 percent and switches off, that’s an indication of an uncalibrated battery.

This also holds true while charging. When you have a low battery and start charging, sometimes the battery will charge up to 80 or 90 percent much faster than normal. But once you unplug it, with a little usage, it will drain really fast too. Put simply, if the battery level and usage don’t match up, you should calibrate it.

So that was all about the Battery Calibration. I hope that now you must be having more clarity than before! Ask me any questions if you have about this topic and I'll try my best to answer. See you again with one more interesting tech topic. Till then keep exploring Mi Community!

Sources: 1, 2
2019-02-03 10:02:01
Favorites8 RateRate

Grandmaster Bunny

Solver13 | from Redmi Note 4


Informative thread!
2019-02-03 10:37:34

Semi Pro Bunny

Rajesh, A. | from Redmi Note 4


thanks for sharing information
2019-02-03 11:13:53

Master Bunny

Simmi Kansal | from Redmi Note 5 Pro


thanks nice information
2019-02-03 12:10:35

Semi Pro Bunny

Alishala Ramu | from Redmi Note 6 Pro


good information
2019-02-03 13:49:01

Semi Pro Bunny

Rock anu | from Redmi 3S


Good thread
2019-02-03 14:08:55

Grandmaster Bunny

V. Saran | from Mi A1


Nice info
2019-02-03 18:37:50
V. Saran

Master Bunny

sundhu 1651424499 | from MI MAX


nice one thanks
2019-02-03 19:12:46

Pro Bunny

Predator 2018 | from Redmi Note 5 Pro


Very informative and thanks for sharing the thread.
2019-02-03 22:07:47

Rookie Bunny

5153483071 | from Redmi Note 5 Pro


Thanks for sharing information
2019-02-03 23:55:05

Master Bunny

Vidhu Bhushan | from Redmi 4A


Nice. Thanks.
2019-02-04 05:19:16
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