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The most understandable android battery calibration. Android battery calibration Android battery calibration

Smartphone users often face battery problems: they complain about a sudden drain of charge, automatic shutdown and situations when the device simply refuses to charge. These problems occur for a variety of reasons, but are often due to poor battery calibration. If you have similar problems, then we recommend that you learn how to calibrate the battery on Android in order to give it a “new life”.

What is battery calibration?

Android OC includes the Battery Stats Checker service. It basically shows the total battery level and percentage used by programs and hardware. Unfortunately, when Battery Stat Checker fails, the displayed charge level does not match the actual charge. Symptoms of this:

• turning off the device before the icon with the percentage of charge shows 0%;
• uneven discharge: rapid replenishment of battery capacity, and then its instantaneous drop by 10-20%;
• "Sticking" on one charge indicator for a long time.

The list is not complete, however, the main manifestations look like this.

The battery calibration process will reset and reconfigure the system as well as the controller to improve the accuracy of the output.

When to calibrate a battery?

Do this after the battery has been through 55-60 charge cycles and you feel that the screen time has decreased for no apparent reason, and there is also instability in the battery.

We also recommend that you calibrate after installing custom firmware, because there may be a sudden drop in the charge level at some point, even if before that everything was stable. This may be due to the fact that installing third-party assemblies corrupted the "batterystats" document.

Due to the calibration, which you can easily do yourself, the indicators displayed by Android Battery Stats are synchronized with the actual charge level of the “bank”.

Before calibrating, check the condition of the battery and firmware to cross them out of the list of possible causes of rapid discharge or lack of charging.

Check the physical condition of the battery

The battery of a smartphone, depending on the model and the process of use, retains its capacity well for a year. However, then it can be greatly reduced, especially due to overheating. So it is advisable to study the appearance of the battery by pulling it out of the phone. Check it for bulges and any defects that signal that it is over. If you have a non-removable battery in your phone, remove the cover with a suction cup and inspect the battery.

Update Firmware

From time to time there are problems with software, which lead to controller failures. If you encounter this, then first check for firmware updates. They often carry patches and fixes that affect the operation of the software with the battery.

Check ports

USB connectors are quite reliable, but sometimes they fail due to voltage drops, damage, or moisture. Check for any deformation in them, change the cable, try to connect the smartphone to the computer if the device does not charge at all.

Calibration for devices without root access from Google

If your gadget is not rooted, you don’t know how to get it, and don’t want to do it at all, then try this instruction. Even though it is a little more complicated, longer and handmade, this is a good option offered by Google.

1. Turn on the device, connect to power and charge for eight to ten hours.
2. Disconnect your phone from the cable and turn it off immediately.
3. Let it charge for another hour.
4. Now turn on the device for a couple of minutes.
5. Turn it off and charge for another hour or so.
6. Pull out the charging cord, turn on the device.

Use your mobile as usual. But wait next time full discharge and plug into an outlet overnight.

The procedure erases and resets the non-root battery statistics database and restores it. But it may take several such runs for the result to make itself felt.

For rooted devices

You can do the same for them, as this is an effective manipulation for calibration. However, it makes sense to resort to simpler methods.

Method number 1 (only Root)

If you have a rooted phone, the calibration procedure is much easier, as there are applications that help you quickly complete the reset of the traffic controller. We suggest you use the Battery Calibration program, which is available in Play market. This is one of the most simple applications to complete this task.

Do the following.

1. After you have downloaded the program, run it, grant superuser rights.
2. Now connect your phone to the charger and charge up to 100%.
3. Once the device is fully charged, click "Calibrate".
4. Next, disconnect your phone from charging.
5. Perform a full charge-discharge cycle (that is, discharge the smartphone until it turns off and plug it into the outlet for the night).

This completes the process. Again, keep in mind that several such cycles may be required, although one is often sufficient.

Method number 2 (Root + Recovery)

If the first method didn't work, try this one. Remember that it will also need a working root, as well as Recovery. Be sure to download "Battery Calibration" from the market, we will need it here as well.

All is ready.

Method number 3 (only Root)

First install a file manager that has access to system files and folders, such as Root Explorer.

So, that's it! Now you know how to properly calibrate. We tried to cover almost all really working methods for correcting errors in reading the charge level. So try them out before buying new batteries.

Battery problems are one of the biggest problems mobile device users can face. If you notice that the battery life of your smartphone or tablet has been drastically reduced, it is better not to put it off the shelf and start calibrating it.

So, in today's article, we'll look at how to calibrate the battery on Android.

Signs that the battery is bad

First of all, it is necessary to find out why the performance of the battery has deteriorated: the matter is in the battery itself or in the calibration system. Indeed, in case of physical damage, no software setting will help. Getting to the tablet battery is quite difficult. So don't try if you don't know how to do it right. With phones, everything is much easier.

There are times when a tablet is needed. How to make it will be described below.

Remove the back cover of the phone and remove the battery. Take a good look at it for bulges. Some smartphone models are equipped with non-removable batteries that are soldered into the device, or with covers of the same type. Then inspect the back panel to see if it sticks out. If your phone is no longer lying flat on the table, then that too could be a sign of bulges in the battery. If they are present on the battery, the smartphone should be taken to a service center. Otherwise, learn on your own how to calibrate the battery on Android.

Also, don't forget that there are many other reasons for poor battery performance. For example, if the smartphone stops charging, most likely there is a problem with the charger port.

What is battery calibration?

How to calibrate the battery on Android? What is this process?

Every Android or iOS device has a dedicated controller that collects battery usage statistics. It determines the true amount of energy in the battery at the current time. Sometimes problems with this controller happen. It stops displaying real numbers, from which the phone can, for example, turn off ahead of time (that is, before the charge level reaches zero).

Calibration is needed to reset the default settings. It sets the charge level, according to the current technical condition of the battery.

How to properly calibrate the battery on Android without Root rights?

It should be noted right away that calibration will not increase the battery capacity, but will only force the controller to display the correct information. Which is also very important. The easiest way to calibrate the battery on Android is to fully charge and discharge, but this method can be bad for battery life. However, if the battery is giving you too much trouble, then it makes sense to take a chance.

1. To begin with, let your device fully discharge until it turns off.
2. Connect the charger to your phone or tablet and, without turning on the device, keep it on charge for several hours. It should be fully charged.
3. Disconnect the charging cable.
4. Turn on your mobile device. Most likely, the indicator will report that the battery is not one hundred percent charged. Put the device on charge again, but now do not turn it off. It is necessary that the indicator shows one hundred percent.
5. Repeat these steps until the indicator shows the correct information.
6. After that, let the device fully discharge and turn off one more time, and then charge it again.

Android battery calibration: setting up the charge controller via Root

It should be reminded that it is not recommended to use the above method too often. Even when the battery is discharged to such an extent that the phone does not turn on, it retains a small charge, which helps to avoid system errors. But it is better not to tempt fate and manually calibrate the battery no more than once every three months. In simple words, a complete discharge or overload of the battery is extremely bad for it.

The next method is even more effective (and no less risky), but you need to get Root rights for it. So, how to calibrate the battery on Android using Root:

1. Repeat the steps above.
2. Install the Battery Calibration app. Before installing, make sure that the charge indicator shows one hundred percent. Reboot your device.
3. Launch the application immediately. It will calibrate the battery itself.

That, in fact, is all. We hope that the question of how to calibrate the battery on Android is now resolved.

At some point, a smartphone or tablet may start to discharge much faster than before. About why the device starts to discharge quickly, our site is already. If nothing helped you, do not rush to run to the service and change the battery to a new one, it is quite possible that you just need to calibrate the battery.

What is battery calibration in a phone or tablet?

Battery calibration is a measurement of capacity and, roughly speaking, editing a battery. As a result of calibration, the battery is used more efficiently and its life can be significantly extended.

Signs that the battery needs to be calibrated

• Long charging of the device, for example, not a couple of hours as before, but 4-5 hours.

• Significantly shorter battery life on a single charge.

• Even with a long charge, the indicator does not want to show 100% charge.

• The device turns off when there is no power, although you do not receive any signals from the battery indicator.

If you encounter this kind of trouble, it makes sense to try to calibrate the battery. True, initially it is worth considering other options. Here's an example from life: a user updated his smartphone over the air to new version firmware that just came out for his device. After the update, he noticed that the smartphone began to discharge quickly. In this case, the problem arose precisely because of the firmware, since an additional update was released a couple of days later, which solved the problem of fast discharge. These are the cases that need to be taken into account.

If you still decide to calibrate, let's talk about it.

Manual calibration

In this case, no third-party applications are used, only the device itself and charging are needed. Root, that is, superuser rights, is also not needed.

• The device needs to be completely discharged.

• Then start charging it with the power on for 8 hours.

• Turn off the device and continue charging it for another 2 hours.

• Disconnect the device from the charger, turn it on for 2 minutes, turn it off and reconnect it to the charger. This time, charge 1 hour.

• Calibration completed, turn on the device.

Software calibration

This option is suitable if you have installed on the device. Download Battery Calibration app from Google Play Market, install and launch.

On the first launch, you need to provide root rights, otherwise the application will not work.

And here is a further instruction, which is not mentioned everywhere:

• Connect your device to the charger.

• Wait until it is charged up to 100%.

• Click the Battery Calibration button.

• Disconnect the charger.

• Discharge your device before shutting down.

• Charge it up to 100% without interruption.

In fact, the application removes system file batterystats.bin and then the system automatically generates a clean file. Any old information that could cause the battery to work incorrectly will be missing from this file.

The Android OS is notorious for its sometimes insatiable appetite for battery life. In some cases, due to its own algorithms, the system cannot accurately estimate the balance of this charge - that's why situations arise when the device, having discharged to the conditional 50%, suddenly turns off. The situation can be corrected by calibrating the battery.

Strictly speaking, calibration is not required for lithium-based batteries - the concept of "memory" is characteristic of older batteries based on nickel compounds. In the case of modern devices, this term should be understood as the calibration of the power controller itself - after installing a new firmware or replacing the battery, the old charge and capacity values ​​\u200b\u200bare stored that need to be overwritten. You can do it like this.

Method 1: Battery Calibration

One of the easiest ways to tidy up the charge readings taken by the power controller is to use the application designed for this.

1. Before starting all manipulations, it is recommended to completely (before turning off the device) discharge the battery.
2. After downloading and installing the application, charge the device's battery to 100% and only then run Battery Calibration.



3. After starting the program, keep the device on charge for about an hour - this is necessary for the application to work correctly.
4. After this time, press the button "Start Calibration".



5. Reboot your device when the process is complete. Done - now the device's charge controller will correctly recognize the battery readings.

This solution, unfortunately, is not a panacea - in some cases, the program may turn out to be inoperable and even harmful, which is what the developers themselves warn about.

Method 2: CurrentWidget: Battery Monitor

A slightly more complicated method, for which you must first know the real battery capacity of the device that needs to be calibrated. In the case of original batteries, information about this is either on the battery itself (for devices with a removable battery), or on the box from the phone, or on the Internet. After that, you need to download a small widget program.




Generally, the above steps are sufficient. If it does not help, you should turn to another method. Also, this application is not compatible with devices from some manufacturers (eg Samsung).

Method 3: Manual calibration method

For this option, you do not need to install additional software, but it can take a lot of time. To manually calibrate the power controller, do the following:

1. Charge your device to 100% capacity. Then, without removing it from charging, turn it off, and only after completely turning it off, pull out the charging cable.
2. In the off state, reconnect to the charger. Wait for the device to report a full charge.
3. Disconnect the phone (tablet) from the power supply. Use it until it turns itself off due to battery drain.
4. After the battery is completely dead, connect your phone or tablet to the block and charge to the maximum. Done - the correct values ​​​​should be recorded in the controller.

As a rule, this method is an ultimatum. If after such manipulations problems are still observed, it is possible that the reason is physical problems.

Method 4: Deleting controller readings via Recovery

Perhaps the most difficult way, designed for experienced users. If you are not confident in your abilities - try something else, otherwise do everything at your own peril and risk.




Summing up, let us remind you again - if none of the above helped you, then most likely the cause of the problems is in problems with the battery or the power controller itself.

Modern smartphones without a battery are no longer mobile, being “tied” to a power outlet. Reliable operation of the gadget depends on the condition of the battery. But there are ways to help pump up and extend the life of the battery on your phone or Android tablet. Learn how to find out the energy intensity of the drive on Android and calibrate it, on which the service life depends, you will learn further.

The essence of the problem with the battery in the gadget

The ideal mobile device, while remaining on, should consume little power - a maximum of a few milliamps of current per hour. The capacity of a modern battery is measured in thousands of milliamp-hours. This is how the simplest mobile phones work, in which, apart from calls, SMS and a system clock, there is nothing - such, for example, is the simplest children's phone "Beeline A100" or the ancient Nokia 3310 mobile phone. A full-fledged gadget with the Android system, of course, cannot be compared with these mobiles.

The essence of the problem of energy consumption of the gadget is in self-starting Android processes and services. In second place in terms of battery power consumption are numerous user-installed programs. A version of Android that has not been brought to mind can also affect battery consumption.

How to turn off unused features in Android

Be that as it may, the consumers of battery energy are the following hardware and software:

• too frequent calls, a long conversation on the gadget;
• active movement of the subscriber across the network coverage area, switching between 2G/3G/4G networks;
• SMS / MMS sent in "bundles" per day;
• backlight brightness;
  Backlight levels help the device not waste energy on it
• frequent calls of third-party applications to GPS in background; GPS services open on command: Settings - Location
• auto-brightness of the screen (light sensor is activated);
  
  Give the command: Settings - Screen and check if auto-rotation of the image is enabled
• auto-rotation of the image on the screen (motion sensor is activated);
  
  The setting is also opened by command: Settings - Screen
• compass;
• vibration feedback of the on-screen keyboard;
  Go to Settings - Language & input - Keyboard settings
• distribution of the Internet via Wi-Fi to other devices; Give the command: Settings - More - Tethering - Access point
• connect other gadgets and accessories via Bluetooth;
  Give the command: Settings - Bluetooth and check if the module is turned off
• connection of computer equipment and accessories via an OTG/microUSB adapter.

All these consumers additionally load the processor and RAM, involve peripherals (controllers and modules for wired and wireless communication of a mobile device).

How to check the power consumption of a device

Give the command "Settings - Battery".

A gap in the usage graph means the gadget is turned off when charging.

In the off state, the device does not keep track of battery consumption - this is possible only when the gadget is active.

Video: How to check and turn off power-hungry features in Android

Practical measures for overclocking the battery

Mobile device batteries can be pumped or recalibrated.

Battery calibration on an Android smartphone

Calibration of the battery controller is needed for the gadget to access 100% battery capacity. P Before calibrating the battery, you can do no additional actions (turn off Android animations, put the device into airplane mode, etc.). The "buildup" of the battery is as follows.

1. Discharge the battery to 0% so that the smartphone or tablet turns off by itself.
2. Wait up to 5 minutes after discharge. This will allow the battery to "settle".
3. Charge the battery with a standard charger up to 100%. Do not turn on the gadget until it is charged.
4. Wait again up to 5 minutes after charging. It is allowed to disconnect the battery for this time (if it is removable). Before removing the battery from the gadget, turn off the charger.
5. Repeat the above steps until the battery is calibrated. Most often, already 2-3 full discharge-charge cycles help.

Manufacturers also recommend that the first charge last up to 12 hours, with no downtime between discharge and charge. But this recommendation is not entirely correct - this is a deliberate violation of calibration technology so that people change batteries more often.

After calibrating the battery, you can use mobile device normally.

Video: calibrating a non-removable battery in an Android tablet

How to "swing" the battery

The buildup of the battery is done so that it develops its maximum resource - and works as long as possible. Modern devices use lithium-ion (Li-Ion) or lithium-polymer (Li-Polymer) batteries, which, although devoid of the “memory effect” (unlike previously used nickel-based batteries), can be “swinged” again .

Before connecting the charger to a smartphone or tablet, it is useful to make several attempts to fully discharge the battery. Often in Android devices, when you try to turn on a discharged gadget again by holding the power button, a vibration signal is activated briefly up to two times per second. Hold the power button (or hold it down with something) until the vibration signal in the gadget starts to work less and less - and soon does not freeze for a long time. From this, the voltage on the controller will drop to the minimum threshold perceived by the device.

Old, “worn out” batteries last for more than one year and beyond, if they are not loaded with unnecessary programs and Android functions.

Do the following.

1. After turning off, try turning on the gadget again.
2. Make several attempts to turn on until the display of the device stops responding.
3. Remove the battery from the device for a couple of minutes and let it build up some voltage (without recharging!).
4. Insert the battery back and hold down the power button again until the vibration signal emitted when the gadget is turned on finally “falls silent”.
5. After making several such attempts to completely discharge the battery, connect the charger to the gadget and let it charge. The device itself must be turned off.

The buildup is achieved by reducing the crystals of lithium metal in the working layer of the battery under the influence of battery voltage fluctuations in the maximum allowable range (from 2.5 to 4.2 volts). Do not overdo it - too deep a discharge of lithium-ion batteries (up to 0-2.5 volts) and leaving them without recharging in this state will lead to an unrecoverable loss of their capacity.

If necessary, repeat the battery controller calibration as described above.

Video: how to restore a Li-Ion battery from a camcorder or smartphone

Difficulties encountered with the battery

Some manufacturers, in the interests of their own commerce, go to extra tricks.

Firstly, this is the fastest wear of the battery. Little-known Chinese firms or completely underground manufacturers save on materials especially.

The "disposable" controller in the battery itself behaves as follows. After 3-4 years (or up to 1000 charge-discharge cycles), it can one day turn off forever, generating, for example, a “breakdown” pulse and thereby self-destruct (if the controller itself is somehow special), but without causing harm to the device itself. You will need to remake the battery and, possibly, the gadget itself. Fortunately, this measure is one of the extreme ones.

“Landing” the battery on glue, from which it is difficult or impossible to remove it, is sometimes used in the most expensive Android smartphones and tablets. It's like sticking the battery in the iPhone 5x/6(s).

Additional locks, loops and other "cunning" devices make it very difficult to remove / replace the battery.

The life of a battery cell without a controller (this requires reworking an outdated gadget using a soldering iron) can stretch for 10 years or more, until the battery is something like a capacitor that can only hold a very small charge - 1-2% of its original capacity. Such elements are useful only in all sorts of homemade products that are unlikely to have anything to do with cellular communication and mobile data transmission. They require a slow discharge-charge according to a special algorithm, unattainable in conventional chargers that have not undergone any alteration, and regular monitoring of the condition of such batteries.

Completely "dead" cells that do not respond to attempts to recharge them (this is due to the steady aging of the electrochemical material of the battery), stubbornly showing 0 volts on the multimeter, are disposed of in accordance with local legislation and environmental protection requirements.

How to extend battery life on your Android phone or tablet

Ways to save battery power are purely software. They do not apply to interference in the "stuffing" of the gadget (for example, pulling out some of the display backlight LEDs, removing the vibration motor, etc.). Most of these settings are in the main menu. android settings and have been discussed above.

Power Saving Optimization in Android

Don't keep apps on your device that you don't use.

Close currently unused programs - this will clear the RAM.

Unwanted apps can be closed with a swipe to the right

Turn off unused features (unnecessary Android apps, processes and services, "extra" wireless, bright lights at night, built-in sensors, etc.). Root access will also help to permanently block unnecessary applications.

Root will help disable unnecessary programs and services

Avoid places where mobile phones do not catch or constantly lose the network (long hauls between settlements, basements and underground garages, shielded rooms of secret laboratories and radiation diagnostics / therapy departments in hospitals, restricted areas, etc.). Try to use one communication standard, for example, 3G.

Give the command: Settings - More - Mobile networks

In case of incorrect display of the charge on the screen of the device or premature shutdown of the device due to battery wear, re-calibrate the battery using the above method.

Battery and device maintenance

Give the battery serial "runs" with a full discharge-charge - at least once every six months to "rock" the battery capacity and calibrate its controller.

The internal battery controller must match the charging voltage. If the element itself is charged at a voltage greater than 4.2 volts, it is regularly recharged and gradually expands. This is already noticeable after one or two years of intensive use of the battery. Over time, such a battery will no longer fit in the gadget, it will protrude the back cover (it will stop closing, its latches will fly off). With a significant discrepancy between the output voltage of the controller and the element itself, the battery simply explodes. In the 2000s, when the Chinese smartphone market was just beginning to develop rapidly, a swollen battery was a common occurrence. Over the years, Chinese manufacturers have become more accurate in "customizing" controllers to Li-Ion cells - but defective batteries are produced from time to time. Change such a battery as quickly as you can.

Dirt on the battery contacts and on the device terminals, although they are gold-plated (gold does not oxidize), is an additional electrical resistance, from which the charge may be displayed incorrectly by the gadget. Clean such stains with rubbing alcohol.

Try not to unnecessarily pull the battery out of place, even if the SIM card and / or memory card slot is located under it.

Chargers with less power are allowed - but not vice versa. Too powerful "charging" will cause significant heating of the battery and the gadget itself. Do not expose the battery to prolonged heating above human body temperature (36.6). At 40 degrees or more, modern controllers turn off the charge current until the battery cools down again to an adequate temperature - elevated temperatures accelerate battery wear.

If the microUSB connector is dirty, the battery charging may be “drip”, intermittent, or the charging current may not flow into the battery at all. Most often this happens if the gadget has been used carelessly and in polluted air for several years. Clean the microUSB socket with a toothpick, a sharpened match, or blow it with a vacuum cleaner turned on at maximum power.

Video: how to swing, calibrate the battery

Timely care of the battery will extend its service life. But if no recovery helps the battery, replace it.