How to Charge a Smartphone Battery Properly

All owners of smartphones are well aware of how quickly the battery sits in them. After all, we all use Wi-Fi to surf the Internet, watchs, play games. All this rapidly reduces the battery life of the device. As a result, the smartphone battery has to be charged every day. This, in turn, shortens its life. Over, if the smartphone has a built-in battery, this reduces the life of the gadget itself. Therefore, it is important to know how to properly charge the smartphone battery. We are talking about this in this material.

How to charge the battery of your smartphone?

Modern smartphones use lithium-ion and lithium-polymer batteries. Today you can find quite a lot of recommendations on how to charge these batteries. Because of this, confusion arises in the user’s head. Some say that the smartphone’s battery needs to be fully discharged before charging. Others deny this, saying that it is impossible to discharge below 40 percent and you need to immediately put on charge. On the upper limit of the charge, the opinions are the same. Someone says that 80–90 percent is enough, while others need to charge the phone’s battery “to the eyeballs”. We advise you to read about how to rock the smartphone battery.

The process and frequency of charging a smartphone

Such conflicting tips have arisen due to the fact that earlier in mobile phones and other gadgets there were nickel-cadmium batteries. They have a pronounced “memory effect.” Therefore, they must be completely discharged before charging. Lithium batteries do not have a “memory effect” and it is not necessary to discharge them before charging. And even undesirable with the exception of a few cases, which are below.

No need to discharge the Li-Ion smartphone battery to zero. It’s better to constantly recharge it. The table below presents the results of research by specialists regarding the service life of lithium batteries depending on the charging mode.

The degree of discharge,% The number of charge-discharge cycles
The degree of discharge,% The number of charge-discharge cycles
100 500
fifty 1500
25 2500
10 4700

The table shows the dependence of the number of battery cycles depending on the depth of its discharge during operation. According to these data, it is better not to discharge the phone below 80 percent of its full capacity. Of course, this is not always possible, since constant access to the charger and the electrical network is required. So, we advise you to charge the smartphone’s battery before its charge drops to below 20 percent.

Smartphone Battery Training

You just need to wait until the smartphone itself turns off due to a dead battery. And then charge the battery 100 percent. This is done to calibrate the battery. As a result of many small discharges and charges, the calibration function begins to fail. And such a complete discharge-charge cycle allows calibration to be brought back to normal. In order to have an idea about this process, read the article about calibrating a laptop’s battery and how to rock a smartphone’s battery.

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Smartphone Battery Life Tips. Charger

It’s best to charge the battery with a standard charger that comes with your smartphone. These devices are made either by the manufacturers of smartphones themselves, or under their control. Therefore, such chargers satisfy all the requirements for charging the battery. Namely, voltage, power, output current, etc.

Smartphone Battery Storage

Heating negatively affects the condition and life of the Li-Ion smartphone battery. Foreign experts conducted a series of studies on the effect of ambient temperature on the degree of battery discharge during storage. The results can be seen in the table below.

OS temperature, С Battery discharge with an initial charge of 40% Battery discharge at initial charge 100%
OS temperature, С Battery discharge with an initial charge of 40% Battery discharge at initial charge 100%
2 percent per year 6 percent per year
25 4 percent per year 20 percent per year
40 15 percent per year 35 percent per year
60 25 percent per year 40 percent per year


In conclusion, let’s briefly list all the recommendations for charging and operating lithium batteries of smartphones.

  • Charge the battery only with “native” charges. Certified chargers may be used. These devices, as a rule, can be found on the website of the manufacturer of your smartphone;
  • Do not discharge the battery to zero (training is an exception) and do not keep charging while gaining 100% capacity. Ideally, the smartphone’s battery charge should be maintained in the range of 50–80 percent;
  • One. Two times a month, conduct battery training. To do this, completely discharge the battery and charge 100 percent;
  • If you leave your smartphone on charge at night, use devices that turn it off after a certain time.

How to Charge a Smartphone Battery Properly

A modern mobile device, in addition to its initial purpose. A means of communication. Performs many other functions. This includes Internet access, a photo and camera, the ability to watch movies, listen to music and play games and much more. Therefore, the batteries of such devices often have to be charged. How to do it right to extend battery life and increase its resource?

Types of Phone Batteries

Modern smartphones use lithium-ion (li-ion) and lithium-polymer (li-pol) batteries. Lithium-ion replaced its predecessors. Nickel-cadmium and nickel-metal hydride. And surpassed them in many ways. However, during operation, their shortcomings were discovered. Lithium electrodes were unstable. Therefore, in pure form, this material is no longer used, replacing various compounds. The resulting batteries met all the requirements, and therefore firmly occupied their niche.

Also, modern smartphones use lithium-polymer batteries. It uses the principle of the transition of polymers into a semiconductor. Electrolyte ions are introduced into polymers, this improves conductivity.

To date, these types of batteries are produced:

  • Polymer electrolytes with lithium salts embedded in them;
  • Polymer-based dry electrolytes;
  • Microporous matrices where non-aqueous solutions of lithium salts are embedded.

Development in this direction is ongoing to this day, so the technology continues to improve.

Older phones typically use nickel-cadmium and nickel-metal hydride.

How to properly charge a new smartphone battery

Many have heard that the new battery needs to be charged in a special way, otherwise it will fail faster. But if the battery is non-removable, then it will not be easy to replace it.

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A brand new battery is recommended to “swing”. Here’s what you need for this:

  1. Discharge the battery completely to zero. No need to do this on purpose, tormenting the smartphone in all ways. Let the discharge happen gradually, during normal use. The main thing is that it be complete.
  2. Then put the device on charge. You need to look in the manual to it, how long it takes a full cycle of charge and discharge, and throw a couple of hours by the time the battery is restored.
  3. After fully charging, use the phone as usual, but again, wait until it is completely discharged, repeat the procedure. And so. 3-4 times. This increases the battery life, allows it to last longer.

How to charge a new phone with a li-ion battery

There are some nuances here. Lithium-ion batteries are not very good at full charge. Therefore, even at the very beginning of operation it is not worth abusing the “buildup”, limiting it 2-3 times. In the future, the battery charge should be kept within 20-80%, you should not allow it to completely discharge, as well as keep it plugged in, all the time. It will be optimal not to let the battery charge to the end, leaving a charge at the level of 90-95%.

How to charge a new smartphone with li-pol battery

Li-polymer batteries do not like deep discharge at all. Manufacturers recommend the first few times to fully charge the battery, but in this case it is better not to bring it to zero. With an indicator of 10-15 percent, it is already worth connecting the device to the mains. In the future, it is recommended to recharge it at any convenient opportunity. In small portions.

. How to extend the battery life of your phone

Different batteries require a different approach, but there are general rules that should be followed for all types of batteries in order to extend their service life:

  1. It is worth using only the “native” charge. When it reaches full charge, it ceases to supply power to it, even if it is not disconnected from the network. Therefore, recharging will not happen in any case. Using someone else’s charge can spoil the battery. “Native” memory devices also meet all the requirements regarding this particular model: voltage, output current, power.
  2. It is necessary to maintain the optimum temperature both during operation and during storage of the smartphone. This room temperature. Both overheating and overcooling, as well as a sharp change in temperature, harm the device equally.
  3. If no one will use a mobile device for a long time, then you should not fully charge it before it, as well as discharge it to zero. This will damage the battery. It will be best to turn off and remove the phone at a charge level of about 50%.

Next. The nuances of operating different types of batteries.

How to charge a smartphone with a li-ion battery

Lithium-ion batteries do not like full discharge (with the exception of calibration) and overcharging. It is optimal to maintain a charge level between 20 and 90%.

You can charge in different ways:

  1. Regular charger. Its characteristics are optimal, therefore it is advisable to use it. Only in the absence of such an opportunity to resort to other methods.
  2. While working at a computer, you can at the same time connect a mobile device to it and recharge it. However, this will take much longer than charging through a wall outlet.
  3. Cigarette lighter in the car. It is convenient for those who are driving, but the process may also not be fast. Depending on the parameters of the device.
  4. Universal memory. Such a device in common people is called a “frog”. Suitable for different types of batteries.
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Once every three months, a charge calibration is recommended. It involves a complete discharge followed by a full charge.

How to charge a phone with a li-pol battery

Lithium-polymer batteries do not like overdischarge and one hundred percent charge. It is better to keep it in the range from 20 to 90%, when this indicator is reached, disconnect from the network. If during discharge you still missed the moment and the device turned off, you do not need to keep it in this state, but you should immediately put it on charge.

With lithium-polymer batteries, you should not be afraid of recharging too often. On the contrary, you need to do this at any convenient opportunity in small portions. The main thing is not to keep charging for several hours and not reach 100% of the scale.

Being permanently connected to the electrical network is harmful to such a battery. The controller built into the charger will disconnect it from charging at the right time, however, heat will continue to flow. This harms the lithium polymer battery.

How to charge a phone with a ni-mh battery

Nickel metal hydride (ni-mh) batteries are less durable than modern ion batteries. And also they have a memory effect. That is, the battery “remembers” to what state its charge reached before, and begins to discharge faster.

To prevent this from happening, such batteries need to be “trained”: periodically completely discharge, and then fully charge. This allows you to increase capacity by an average of 5%.

What is not allowed when charging the phone battery

All batteries, without exception, do not tolerate:

  • Hypothermia;
  • Overheating;
  • Bumps and other physical damage;
  • A sharp change in temperature;
  • The use of non-native memory;
  • Permanent connection to the mains.

Depending on the type, they also have some other “addictions”.

With li-ion battery

With a battery of this type, the following cannot be allowed:

  • Frequent complete discharge;
  • Constant 100% charge;
  • Discharged storage;
  • Charge calibration too frequent;
  • Overheating and hypothermia.

It’s better to maintain a battery charge of up to 90%, and once a few months to arrange a “training”, and everything will be fine.

With li-pol battery

With a battery of this type, the following cannot be allowed:

  • Full discharge;
  • Training or calibration;
  • Full charge;
  • Permanent connection to the mains;
  • Overheating and hypothermia.

As with li-on, the optimal charge will be in the range from 20 to 90%.

With ni-mh battery

With a battery of this type, the following cannot be allowed:

  • Recharge;
  • Frequent charge “a little bit”;
  • Storage in a fully charged or fully discharged form;
  • Overheat.

In order not to lose the capacity of such a phone, it is recommended to charge it completely, and discharge it as much as possible. Periodically “train.”


It should be understood that whether you have an Android, iPhone or an old black and white mobile phone, none of these devices can live forever. Aging and battery failure is an inevitable process. However, proper handling can slow it down and extend the life of the mobile device.