How to increase Android battery life. How to extend the battery charge on Android: ways to increase battery life and optimize energy saving

Many users of smartphones running the Android operating system complain that after a short service life the phone quickly discharges. There can be many reasons for this, and in this article we will look at how to increase battery life on Android.

A little boring theory or why the phone discharges quickly

Smartphones use lithium-ion batteries to ensure their battery life. Despite their undeniable advantages (light weight, ability to produce high voltages), they also have disadvantages. For example, they get old. The average mobile battery is designed for 500 charging cycles, that is, a little less than a year and a half, but the number of its cycles can be increased if you use it correctly.

Always keep your battery charged

Lithium-ion batteries perform well when their charge level is between 50% and 80% and do not tolerate overcharging and discharging very well. The appropriate controller protects your battery from overcharging, and you must protect it from discharging to zero. If you are at home, make sure that the charge level is in the range of 50%-80%, and before leaving home for a long time, fully charge your smartphone. If you need to remove the battery from your phone, do it when it is at least 60% charged.

Temperature

Your smartphone battery works well in the room temperature range, that is, from 15 to 30 degrees. When exposed to extremely cold or hot conditions, the battery loses its capacity and quickly becomes unusable. Don't leave your Android smartphone in the sun and don't forget it in the refrigerator.

High quality charger

Try to use an original charger; if you don’t have one, try to take a high-quality one. The same goes for cable. It should not be the cheapest and preferably not too long. In Apple phones, if a non-original charger is used, a corresponding notification appears on the screen, but Android devices do not have such a nice function, so you will have to monitor this.

Perform calibration

Calibration is an operation that can correct battery problems associated with improper operation of the operating system itself or the charge controller. This will not help save a “dead” battery, but quite often this is the reason for an Android smartphone that quickly runs out.

To perform calibration you will need an application Battery Calibration. To calibrate the device, you need to charge it to 100% and leave it on charge for some more time to accurately complete the cycle, and then press the calibrate button in the application. There are more detailed instructions in the application itself.

Reduce the power consumption of your Android smartphone

A lithium-ion battery has a limited number of charging cycles, so charging less frequently is a good solution. This can be done in the following ways:

• Always turn off Wi-Fi and Bluetooth when you are not using them, they consume a lot of energy. You can leave your mobile internet.
• Always close all applications, don't just minimize them. To do this, you need to hold down the menu button and move all windows of running applications to the side.
• Using the application Doctor Battery for Android, find the most energy-consuming applications and remove all unnecessary ones from this list. You can also remove system applications, such as Google services, but this requires root rights.
• Install unofficial firmware. The most famous is Cianogen. In addition to its customizability, it is famous for its good battery economy.

Harmful myths about how to increase battery life

And finally, what not to do to increase the battery charge on your Android smartphone. You can often find these tips on the Internet or from friends, but don't listen to them:

• Battery freezing. Some people think that if their smartphone does not tolerate heat well, then it will like the cold. This is not true, keep your phone at room temperature and do not put the battery in the freezer.
• Battery training. Lead-acid batteries really need training, but lithium-ion batteries will only be harmed. If they tell you “discharge your phone completely three times and charge it while it’s turned off,” don’t believe it.
• Deleting the batterystats.bin file. This file stores information about your battery; almost all applications related to monitoring battery life work with this file. There is no need to remove it, it will definitely not do any good.

Conclusion

This article did not contain tips on how to save an already damaged Android smartphone battery, but only on how to increase the battery life. If your phone discharges quickly enough that it interferes with the normal use of the device, then the best thing you can do is buy a new battery and avoid repeating old mistakes. Be more attentive to your Android devices, and they will serve you long and well!

Nowadays, many people have practically stopped using home phones and switched to mobile phones, which come with lithium batteries that require some care during use. Once you learn how to optimize the performance of such a battery, you can significantly extend its life.

Steps

Increase the time between battery charges

Turn off your phone. This is probably the most effective way to preserve battery charge. Why? This allows you to save energy and charge your phone. If you are not going to answer phone calls at night, or in your free time, just turn it off. Also do this when you are in an area where there is no signal (for example, a subway, or an area outside the city, because constantly searching for a network drains the battery very quickly).

• Some phones have a feature that automatically saves charge in this situation, but it takes about half an hour for it to start working. By that time, part of the charge will already be used up. If you are not going to receive calls, but continue to use your phone as a PDA, then simply activate airplane mode on it (disabling telephone functions).

1. Stop searching for a signal. When you are in an area where there is no or weak signal, your phone will search for a network, wasting a lot of energy in the process. A good example of this is when you forgot to turn off your phone during a flight. A great way to extend the life of your battery is to be in an area with reliable signal reception. If the signal is weak where you are constantly, then purchase a special signal amplifier, and then your phone will confidently catch the network. Or put your phone in airplane mode, as mentioned earlier.

   Not Follow the fully charge and discharge method. Don't let your phone's battery charge reach zero. Unlike nickel batteries (those labeled NiCd and NiMh AA batteries found in many stores), lithium batteries are designed to be charged more frequently, so if their charge level drops to zero too often, it is unlikely to extend the life of the battery . To help your lithium battery last longer, recharge it often.

   Turn off the vibration signal on your phone, leaving only the ringtone. The vibration alert function also consumes battery. If possible, reduce the volume of incoming calls.

   Turn down the screen backlight. The backlight allows you to see what is happening on the phone screen in low light mode, as well as in bright light or outdoors. It also wastes precious charge. If you don't need the backlight very often, your battery will last longer. However, if the backlight is necessary, then you need to change the time settings when it automatically turns off on the phone. Reduce this time. Usually a few seconds is enough. Some phones have a light sensor that adjusts the phone's backlight depending on the surrounding conditions and the amount of light.

   Don't use unnecessary features. If you have little battery left, try not to use the camera or the Internet. Camera lighting can drain your battery very quickly.

   Reduce your phone talk time. Yes, this is obvious, but remember how many times have you heard from your interlocutor: “My battery is about to run out,” and then continued talking for several more minutes? Sometimes a low battery can be a good excuse (admittedly, a great excuse), but if you really want to save your battery, try to talk less.

   Turn off Bluetooth. It drains the battery very quickly.

   The same can be said about Wi-Fi, GPS and other functions if your phone has them. Disable them if you don't need them.

   Reduce screen brightness to the lowest possible level.

   Change your network settings as often as possible. Use 3G (HSPA, HSPA+, UMTS) or 2G (GSM), not 4G (LTE). The phone's battery will drain much faster in 4G mode than when working in 2G and 3G modes. Turn off 4G when the coverage area does not provide a strong enough signal. The fact is that when 4G is turned on, your phone also uses 3G, so the battery works “for two”. When the 3G signal is weak or non-existent, turn off 3G and switch to 2G.

   On your smartphone, try to avoid animated home screen screensavers. Animated screensavers will drain your battery faster.

   • If possible, put a black picture on the main screen. AMOLED screens consume less power when displaying black colors instead of white

   Extend the life of your battery

   1. Calibrate the new battery. New batteries should be fully charged before first use to achieve maximum battery life. Nickel batteries require about 16 hours for the first charge, and 2-4 charge-discharge cycles, while lithium batteries require about 5-6 hours for the first time. And ignore the fact that the charge indicator shows 100% - this is normal, just not accurate, unless your battery is already calibrated.

      Do not completely discharge lithium batteries! Unlike nickel-cadmium batteries, the life of lithium-ion batteries shortens with each full discharge of the battery. Instead, charge it as soon as the battery is low. Lithium-ion batteries, like many other batteries, have a fixed number of charge cycles.

      Do not let the battery get hot. Place the battery in the refrigerator. When used near room temperature, the battery will last longer; nothing uses it up like working in high temperatures. You can't control the weather, but you can simply make sure that your phone isn't left on the dashboard of your car in the hot sun. Also, don't carry it in your pocket where it will get hot from your body temperature. Remember to check the battery while charging. If it seems too hot, your charger may not be working properly.

      Charge the battery correctly according to its type. Most modern phones run on lithium-ion batteries, while older ones mostly use nickel-cadmium batteries. Look at the label on the back of the battery, or read your phone's manual, to determine what type of battery your phone uses.

      Store batteries properly. If you won't be using your phone for an extended period of time, remove the battery and place it in a cool, dry, but not too cold place (put it in an airtight container in the refrigerator, not the freezer). Do not keep it near metal objects that may cause a short circuit. Lithium-ion batteries are not designed to handle extreme cold, so before next use, remove it from the refrigerator and leave it for an hour. Lithium-ion batteries are less susceptible to oxidation if stored with a residual charge of about 40%. Never store a lithium battery when it is almost completely discharged. Recharge the battery after storage.

      Clean the contacts on the battery and phone. Over time, dirt can accumulate on them, making it difficult to transmit energy. Wipe them with a cotton swab soaked in alcohol. If the contacts are made of two alloys such as tin and gold, then "Galvanic or bimetallic" corrosion may occur. To remove corrosion from contacts, special solvents such as acetone or nail polish remover are usually required. Be careful: solvents can dissolve plastic, so use a Q-tip to avoid damaging the battery cover or your phone.

   Battery indicators

   • When using a car charger, do not charge your phone if the car is very hot outside. Wait for the car to cool down and connect the phone.
   • When charging, place the phone on a material that absorbs heat, such as a wooden or plastic table, a book or a metal surface will be most effective (since metal conducts heat well, it will absorb excess heat from the battery).
   • Before rebooting your phone due to not being able to connect to the network, first try turning Airplane mode on and off as rebooting your phone takes up more battery power.
   • You don't need to turn off your phone to charge it. Most chargers provide enough power to charge your phone and keep it working at the same time. This will not extend the battery life and if you leave the phone on, you can easily check the charge level later and disconnect the phone from the charger when it is fully charged.
   • If you use email on your phone, check to see if it updates information about emails every 15 minutes or half an hour. Checking email uses a small amount of battery power. Turn off automatic checking for incoming emails if you want to extend your battery life.
   • Check if your phone has a "Battery Saver" feature. If yes, you can turn it on to extend your battery life.
   • Turn on the charge saving function and connect the charger. Also, do not charge your phone for too long - this may reduce the battery life and, as a result, lead to its replacement.
   • mAh - milliamp-hour, a non-system unit of measurement of electrical charge. The higher this value for batteries with the same voltage, the greater the capacity of this battery, which means the phone will hold a charge longer.
   • No matter how hard you try to extend the life of your battery, it will eventually stop working. If this moment has come, you can take it to the manufacturer for recycling or return it back to the store. If it can't be recycled or you just want to buy a new battery, take care of recycling the old one by returning it to the manufacturer, supplier, or taking it to a recycling center. Some electronics stores offer boxes for old batteries and accumulators.
   • Nickel metal hydride (NiMH) batteries do get hot during charging unless you use special "slow" chargers. If your phone uses this type of battery, don't worry about it getting hot while charging, unless it gets so hot you can't touch it.
   • Many battery manufacturers and specialty stores can answer your questions about your phone's battery.

Android phone battery life is a constant headache. That is why this issue is discussed endlessly on sites such as Mobile Nations or XDA Developers - ROM developers and modders are trying to find the optimal combination of hardware and software that would work for as long as possible.
(Image "The Hungry Android" by thefjk)

Today, there are more than 900,000,000 Android phones in the world according to information presented at Google I/O 2013, and this number continues to grow.

For us, as manufacturers of high-capacity batteries, this is a good indicator, but according to our gamer users, even the operating time of a high-capacity 6400mAh battery for Note 2 is not enough, so today we will forget about batteries as a method of solving the problem and present to your attention universal TOP 5 tips, which will help you increase the operating time of your Android phone.

It's not news that in most cases, besides the Android OS itself, the screen consumes the most energy on Android. In second place is the search and use of signals (network and 3G, Wi-Fi) - in places with poor communication, the phone begins to consume more energy.

In order to understand which programs and processes consume the most energy on your phone, you need to enter the menu that evokes so many different emotions Settings->Battery(or Settings->About device->Battery in earlier versions of Android).

1. Standard Power Control Widget Many widgets can consume a lot of energy, but this one is aimed specifically at helping us quickly and efficiently turn on and off WiFi, BlueTooth, Sound, Synchronization and so on. Add this widget to one of your dashboards:


On Galaxy S4 This functionality was added to the Notification Bar with the ability to switch views, which is very convenient!



We also recommend trying the Power Toggles widget.

2. 3G network.

Usually, after the screen, the most energy is spent on 3G, EDGE and GPRS. Today, the possibility of mobile Internet access is one of the main reasons for purchasing smartphones, but this does not mean that 3G should work all the time. You can disable 3G in Settings->Advanced Settings->Mobile Networks->Mobile Data. On S4, Mobile Data can be turned off via the Notification Panel. For all other phones, we recommend the Power Toggles widget (see 1) - it allows you to turn 3G on and off with one click.

Depending on your tariff, such control over mobile Internet access will also help you save not only energy, but also money;)

3. “Breaking Bad Apps” - Old and poorly written applications.
Many applications continue to run behind the scenes, even if you haven't opened them in a long time. In most cases this is fine, and if the application is written according to the Android Dev guidelines, it provides quick access to the application and saves the resources needed to start the application from scratch, including energy. As already mentioned in, the fact that RAM memory is completely full on Android is a completely normal phenomenon aimed at increase in productivity, and not vice versa. Problems begin when an application not only leaves a running process for quick access, but still working behind the scenes. This leads to loss of energy, and therefore we recommend catching such applications through the menu Settings->Battery and delete. We also recommend that you analyze bloatware- applications that are usually pre-installed on the phone and cannot be removed. If you see that you don’t need one of them at all, but at the same time it consumes a lot of energy, you can turn it off in the Application Manager.

4. Wakelock Detector app.
If you notice that your phone's screen does not turn off when it should, or that it suddenly turns on without warning, then most likely your phone has so-called wakelock apps(wakelocks). To find them, XDA Developers recommend the Wakelock Detector app. Using this application, you can significantly reduce the energy consumption of your screen.

5. Don't use Task Killers. As we have already written, popular Process Killers do not show the average user the difference between good and bad applications, so the habit of constantly closing all processes with their help leads to the fact that in addition to the energy consumption of the task killer itself, re-launching applications closed by it leads to additional costs energy. If the RAM memory is full, Android itself will close hung or unused processes for a long time. Task killers are not needed to find poorly performing applications or wakelocks - use the Settings->Battery and Wakelock Detector menu. To remove applications, use Application Manager, and to restore, use My Apps in Google Play.

If you have any additions, tips, app recommendations, please leave a comment! We will be happy to supplement this article with useful information!

The rapid consumption of battery power in an Android device is one of the important problems for most users.

Saving battery power will not only help increase the lifespan of your smartphone, but will also speed up the operation of the interface, which is important when using it. How to achieve minimal energy consumption by your device? There are many tips and various kinds of programs for this purpose! This article will help you understand this issue.

What affects the rapid discharge of the battery?

Android OS is designed in such a way that battery power is consumed even when the display is locked.

Battery consumption is affected by factors such as:

1. Display;
2. All ongoing processes in the system of your smartphone;
3. Wireless networks and data transmission;
4. Animated wallpaper and active widgets on the desktop;
5. Active sensors;
6. Smartphone processor operation.

"Battery Doctor" - accounting and control

Having seen such a number of different elements, the question certainly arises: “How to disable all of the above?” To do this, you need to install the Battery Doctor program, which will help you understand where exactly the battery power is being spent.

The program is available for free download on Google Play Market under the name “Battery Care”.

Battery Doctor has a functional widget that allows you to:

• See the remaining life of your phone;
• You can quickly and automatically close unnecessary processes, optimizing the operation of applications.

The main convenience of the proposed application is that you do not need to spend a lot of time to quickly optimize your device. Just look into “Battery Doctor” and he will do everything himself!

How to increase battery life on Android

In order to extend the battery life of your phone, you should not install various types of animations for the desktop. Widgets and live wallpapers affect the performance of display pixels, which seriously affects battery consumption. Third-party shells have a bad effect on the operation of the device. Use a pre-installed shell for your smartphone, and the charge will be consumed in a balanced manner.

Surely, if you are the owner of a Samsung or LG device, then your smartphone will have various sensors, such as:

1. Gesture controls;
2. Motion sensors;
3. Gaze detection functions and the like.

If necessary, disable the above items.

Also, the “Wi-Fi”, “Bluetooth”, “NFC” functions should not be left active if necessary. These elements absorb percentages of your phone's battery to carry out various processes.

Modern smartphones without a battery cease to be mobile, being “tied” to an outlet. The reliable operation of the gadget depends on the condition of the battery. But there are ways to help boost and extend the battery life of your Android phone or tablet. How to find out the energy capacity of the drive on Android and calibrate it, which determines the service life, you will learn further.

The essence of the problem with the battery in the gadget

An ideal mobile device, while remaining turned on, should consume little energy - 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 there is nothing except calls, SMS and a system clock - such as, for example, the simplest children's phone "Beeline A100" or the ancient mobile phone Nokia 3310. A full-fledged gadget with the Android system, of course, cannot be compared with these mobile phones.

The essence of the gadget's energy consumption problem lies in self-starting Android processes and services. In second place in battery consumption are numerous programs independently installed by the user. An undeveloped version of Android 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, long conversations on a gadget;
• active movement of the subscriber within the network coverage area, switching between 2G/3G/4G networks;
• SMS/MMS sent in batches per day;
• backlight brightness;
  Backlight levels help the device not waste energy on it
• Frequent calls from third-party applications to GPS in the background; GPS services open by command: Settings - Location
• auto screen brightness (light sensor is activated);
  
  Give the command: Settings - Screen and check if auto-rotate the image is enabled
• auto-rotate the image on the screen (the motion sensor is activated);
  
  The setting is also opened by the command: Settings - Screen
• compass;
• vibration feedback of the on-screen keyboard;
  Go to Settings - Language & input - Keyboard settings
• Internet distribution via Wi-Fi to other devices; Give the command: Settings - More - Modem mode - Access point
• connecting other gadgets and accessories via Bluetooth;
  Give the command: Settings - Bluetooth and check if the module is turned off
• connecting computer equipment and accessories via an OTG/microUSB adapter.

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

How to check your device's power consumption

Give the command “Settings - Battery”.

When the device is turned off, it does not keep track of battery energy consumption - this is only possible when the gadget is active.

Video: how to check and disable power-hungry features in Android

Practical measures to overclock the battery

Mobile device batteries can be recharged or recalibrated.

Calibrating the battery on an Android smartphone

Calibrating the battery controller is necessary for the gadget to access 100% of the battery capacity. Before calibrating the battery, you do not need to do any additional actions (turning off Android animations, switching the device to airplane mode, etc.). The “swing” of the battery is as follows.

1. Discharge the battery to 0% so that the smartphone or tablet turns off on its own.
2. Wait after discharge for up to 5 minutes. This will allow the battery to “settle”.
3. Charge the battery with a standard charger 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 during 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, 2-3 full discharge-charge cycles help.

Manufacturers also recommend maintaining the first charge for up to 12 hours, without resorting to downtime between discharge and charge. But this recommendation is not entirely correct - it is a deliberate violation of calibration technology so that people change batteries more often.

After calibrating the battery, you can use your mobile device as usual.

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

How to “boost” a battery

Battery boosting is done to ensure that it reaches its maximum resource - and lasts 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 “boosted” again .

Before connecting the charger to your smartphone or tablet, it is useful to make several attempts to completely discharge the battery. Often in Android devices, when you try to turn on a discharged gadget again by holding down the power button, a vibration signal is briefly triggered 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 sound less and less often - and soon it stops for a long time. This will cause the voltage on the controller to drop to the minimum threshold perceived by the device.

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

Do the following.

1. After disconnecting, try turning on the gadget again.
2. Make several attempts to turn on until the device display stops responding.
3. Remove the battery from the device for a couple of minutes and let it build up the voltage a little (without recharging!).
4. Insert the battery back and hold down the power button again until the vibration signal emitted when you turn on the gadget completely stops.
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 build-up is achieved by reducing the lithium metal crystals in the working layer of the battery under the influence of fluctuations in battery voltage in the maximum permissible range of values ​​(from 2.5 to 4.2 volts). Do not overdo it - discharging lithium-ion batteries too deeply (up to 0–2.5 volts) and leaving them without recharging in this state will lead to an irreparable loss of their capacity.

If necessary, repeat the calibration of the battery controller according to the instructions above.

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

Difficulties encountered during battery operation

Some manufacturers, in the interests of their own commerce, resort to additional tricks.

Firstly, it wears out the battery as quickly as possible. Little-known Chinese companies or completely underground manufacturers especially save on materials.

A “disposable” controller in the battery itself behaves as follows. After 3-4 years (or up to 1000 discharge-charge cycles), it may one day turn off forever, generating, for example, a “breakdown” pulse and thereby self-destructing (if the controller itself is something special), but without causing harm to the device itself. The battery and, possibly, the gadget itself will need to be redesigned. Fortunately, this measure is one of the last resorts.

“Setting” the battery on glue, from which it is difficult or impossible to remove it, is sometimes used in the most expensive smartphones and tablets with Android. This is reminiscent of gluing the battery in the iPhone 5x/6(s).

Additional locks, cables and other “tricky” devices make it much more difficult to remove/replace the battery.

The service 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 somewhat reminiscent of a capacitor, capable of holding only 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 communications and mobile data transmission. They require slow discharge-charge according to a special algorithm, unattainable in conventional chargers that have not undergone any modification, 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 the battery life on an Android phone or tablet

Ways to save battery power are purely software. They do not apply to interference with 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 found in the main Android settings menu and have been discussed above.

Optimizing Energy Saving in Android

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

Close programs that are not currently in use - this will clear up your RAM.

Turn off unused functions (unnecessary Android applications, processes and services, “unnecessary” wireless communications, bright lighting at night, built-in sensors, etc.). Root access will also help to permanently block unnecessary applications.

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

If the charging device displays incorrectly on the screen or the device turns off prematurely due to battery wear, recalibrate the battery using the above method.

Maintenance of the battery and the device itself

Give the battery serial “runs” with a full discharge and charge - at least once every six months in order to “boost” the battery capacity and calibrate its controller.

The internal battery controller must be matched to the charging voltage. If the element itself is charged at a voltage greater than 4.2 volts, it is regularly recharged and gradually swells. This is noticeable after one or two years of intensive use of the battery. Over time, such a battery will no longer fit in the gadget and will bulge the back cover (it will no longer close and its latches will come off). If there is 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, swollen batteries were a common occurrence. Over the years, Chinese manufacturers have become more precise in “tailoring” controllers to Li-Ion cells - but from time to time defective batteries are produced. Change such a battery as quickly as you can.

Dirt on the battery contacts and terminals of the device, 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 medical alcohol.

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

It is permissible to use chargers with lower power - but not vice versa. Charging too powerfully will cause significant heating of the battery and the gadget itself. Do not expose the battery to prolonged heat above human body temperature (36.6). At 40 degrees or more, modern controllers turn off the charging current until the battery cools down again to an adequate temperature - elevated temperatures accelerate battery wear.

If the microUSB connector is dirty, 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 is used carelessly and in polluted air for several years. Clean the microUSB socket with a toothpick, a sharpened match, or blow with a vacuum cleaner turned on at maximum power.

Video: how to pump up and calibrate the battery

Proper battery care will extend its service life. But if no restoration helps the battery, replace it.