Smartphone manufacturers recommend calibrating your phone battery on a monthly or quarterly basis. But what’s the point of all that? And is battery calibration necessary? As it turns out, you may not need to calibrate the battery.
Android phones use lithium-ion (Li-ion) or lithium-polymer (Li-po) batteries. Equipped with a smart chip which makes calibration unnecessary.
Battery calibration is a remnant of the older nickel-based batteries (usually nickel-cadmium batteries) that were used extensively in laptops until a few years ago. Here are the facts.
To understand battery calibration, you need to know some basics about how batteries work. Each battery has a smart chip. The chip sends a signal indicating what the current battery level is. Your Android smartphone picks up this signal and displays it on your screen.
The chemical elements of the battery (lithium or nickel) are what store the energy. This chip tries to read how much energy is stored by this battery. For the most accurate readings, the chip needs to “learn” the battery capacity. If the battery is completely 0 percent empty, then fully charged to 100 percent, the chip then learns its capacity.
When you use your phone more, the battery drains and recharges at some point. This much filling causes the chip to miss an accurate reading.
In short, at this point, the chip and chemical capacity are not calibrated. To get an accurate idea of battery capacity, you need to calibrate or recalibrate.
How to Calibrate iPhone Battery in 6 Easy Steps
After the phone turns itself off, restart it so it turns off again. Even though the battery is 0 percent, it has some reserves left. Now, when the phone is turned off, charge it to 100 percent. It’s safe to use a fast charger for this, but make sure you get to 100 percent.
Once fully charged, disconnect and boot your phone. Android may not say it 100 percent, and that’s okay. In that case, plug in the charger again and leave it up to 100 percent. Then unplug
This full discharge and charge cycle allows the chip to calibrate its readings with the battery charge cycle.
Pure battery calibration about accurate battery readings. It doesn’t increase battery life. It’s an old myth left over from years before we had lithium-ion batteries, smart chips, and smart sensors in phones and laptops.
Battery calibration does not show the health of your Android battery. Wearing and damaging the battery does affect its calibration, so it’s a sign of how much use it has gone through. However, battery health doesn’t come entirely from the amount of usage.
Another myth about battery calibration, especially with Android phones, revolves around the BatteryStats.Bin file, found deep in the file system. You will come across many fake battery calibration apps that claim wiping this file helps improve battery health. This is a lie.
Google engineers have confirmed that the BatteryStats.Bin file “has no impact on the current battery level shown to you [dan] has no impact on your battery life.” In fact, the files will be reset every time you disconnect them after a full charge.
In short, removing BatteryStats.bin does not increase battery life or even calibration.
Why Battery Calibration Is Not Required
These intelligent algorithms and sensors have allowed Android (and iOS) to calibrate the battery without the need for a full discharge and charge cycle. The phone can recalibrate the battery based on when it’s in “low battery” mode, and if you charge it fully or almost completely.
When Should You Calibrate the Battery
This also applies when charging. When you have a low battery and it starts charging, sometimes it will charge up to 80 or 90 percent faster than usual. But once you unplug it, with a little use, it drains really fast too.
Simply put, if the battery level and usage don’t match, you should calibrate it.
The only time you should consider battery calibration is if you haven’t used your device for a long time. For example, if you take out a spare phone that hasn’t been used for months, do a calibration cycle before you start using it.
Use Battery Calibration Efficiently
Proper battery calibration requires a full discharge, and phone makers recommend doing this every once in a while. But you don’t have to!
A full discharge or deep dirt can reduce the life of your lithium-ion battery. The more time your battery is fully charged, the shorter its lifespan will be. It starts holding a lower amount of power after each full discharge.
It is better to have a partial discharge and recharge, which happens with daily use.
If your Phone has no problem with inaccurate battery readings on your phone, you don’t need to calibrate the battery. Your phone intelligently calibrates the battery for you.
In addition, calibration does not increase battery life. If you’re worried that your phone’s battery life isn’t good enough, you need to check your battery health or use our tips to save battery life on Android. Certain common errors will drain battery power.
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