Smartphone battery. How it works and how to charge your phone correctly

This article we start a series of fascinating materials dedicated to the smartphone battery. At first glance, the word “exciting” and “battery” do not have a logical connection. However, after reading this article to the end, you will be sure about the opposite!

The problem with this kind of articles is that the tips on the “correct” charging gives every second user of the smartphone and often can be seen directly opposite information.

Someone says that you can easily leave the smartphone on charging for the whole night or discharge the phone to zero, because the power management system will not allow critical fall or exceeding the voltage inside the battery. Others do not agree with this in the root, leading personal sadness as arguments.

In this series we will touch on all the questions, starting from the principle of battery life and ending with fast and wireless charging. In the first part, let’s talk about how the battery is working at all, where the current appears and where it goes, and will also answer some important practical issues.

Practical tips on the operation of lithium-ion batteries

Lithium-ion batteries are not so “picky”, like their nickel-metal-hydride fellow, but still require some care. Holding five simple rules, You can not only extend the life cycle of lithium-ion batteries, but also to improve the working hours of mobile devices without recharging.

Do not allow a complete discharge. The lithium-ion batteries do not have the so-called memory effect, so they can and, moreover, you need to charge, without waiting for discharge to zero. Many manufacturers calculate the lifetime of a lithium-ion battery with the number of full-time cycles (up to 0%). For high-quality batteries this 400-600 cycles. To increase the service life of your lithium-ion battery, more often charging your phone. Optimally, as soon as the battery charge drops below 10-20 percent, you can put the phone for charging. This will increase the number of discharge cycles to 1000-1100. This process specialists describe such an indicator as the discharge depth (Depth of Discharge). If your phone is discharged to 20%, then the discharge depth is 80%. The table below shows the dependence of the number of cycles of the discharge of the lithium-ion battery from the discharge depth:

Discontinue every 3 months. A full charge for a long time is also harmful for lithium-ion batteries, as is the constant discharge to zero. Because of the extremely unstable charge process (we often charge the phone as you have to, and where it turns out, from USB, from the outlet, from an external battery and so on.) Experts recommend to completely discharge the battery every 3 months and after this charge up to 100% and hold on charge 8-12 hours. It helps to reset the so-called upper and lower battery charge flags. You can read this in more detail here.

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Keep partially charged. The optimal state for long-term storage of the lithium-ion battery is the charge level from 30 to 50 percent at 15 ° C. If you leave the battery fully charged, over time, its container will significantly decrease. But the battery, which for a long time dust with the shelf discharged to zero, most likely, no longer a tenant. it’s time to send it to disposal. The table below shows how much capacity remains in a lithium-ion battery depending on the storage temperature and charge level during storage for 1 year.

Use the original charger. Few people know that the charger in most cases is built directly inside the mobile devices, and the external network adapter only lowers the voltage and rectifies the current of the household electrical outlet, that is, directly on the battery does not affect. Some gadgets, such as digital cameras, are deprived of a built-in charger, and therefore their lithium-ion batteries are inserted into an external “charger”. This is where the use of an external charger of dubious quality instead of the original can negatively affect the performance of the battery.

Do not allow overheating. Well, the worst enemy of lithium-ion batteries is a high temperature. overheating they are not tolerated. Therefore, do not allow direct sunlight on mobile devices, and also do not leave them in close proximity to heat sources, such as electrical heaters. The maximum allowable temperatures under which the use of lithium-ion batteries is possible: from.40 ° C to 50 ° C

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Also, you can see the frequently asked questions on batteries on our website.

How it works?

Each phone or tablet is designed for a specific current and voltage. It’s good and bad. It’s good because the phone itself is a defense, it’s bad because to charge the usual phone, letting a larger current, it will not work.

Such adapters seem to expand the “doorway”, and provide a faster charging device, allowing the device to make more voltage and current strength. For example, if the old devices supported 5V and 1A, then new gadgets are already working with 9V and 2A (this is as an example, values ​​can be higher).

If you connect the charging Quick Charge to the old device, nothing bad happens, the device will not burn, but will be charged with the same pace. So here you need and smartphone (or tablet) and charging with QICK CHARGE standard.

How to charge the battery from the phone in the absence of the device itself

There is a possibility directly charge the phone battery, which can be useful in the absence of a regular charger under hand. This happens in emergency cases. Specialists give several extreme councils, how can I extend the life of the battery for a while:

  • C wind battery scotch. In some cases, this method allows to achieve the operation of the sex battery.
  • Attach to the battery heated subject.
  • Beat acb about solid surface before receiving visible deformation.
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The efficiency of the smartphone depends on the performance of the battery, so it should be carefully related to the question of the correct charging of the battery. Once again see and find out how to do it, you can, watching the proposed video.

In which cases you can discharge the smartphone to zero?

There are only two standard situations when it is worth fully dischargeing a smartphone. Next, we briefly describe both cases:

  • Check the battery autonomy and the speed of filing her charge. That is, if the user wants to make sure that the real autonomy parameters correspond to the declared values, it has the right to discharge the device, and then charge the smartphone battery, checking the time of the procedure.
  • The need for calibration. Sometimes the indicator begins incorrectly to show the level of charge. In this situation, it makes sense to completely discharge and charge the smartphone. Often these actions help normalize the situation.

In other cases, there is no point in discharge, so it is impossible to bring it to it. And by chance too. If there are concerns that the smartphone is discharged while staying away from home, you can pre-buy an external battery (Delibank) and timely charge the phone at any convenient moment. This decision will have a positive effect on the durability of the smartphone and will not allow to stay without mobile communications at the right moment.

Solution of famous problems

Some users encounter problems during charging. You can solve them thanks to the information presented below.

The battery is quickly discharged

First go to settings. Here go to the “Food and Performance” section. Now click “Energy Consumption”. The screen should open the list of applications that consume the most charge. It will reasonably delete the program data that will have a positive effect on the autonomy of the device.

Do not install too high display brightness. Optimal solution. Enable automatic adjustment mode. Turn off Bluetooth, GPS, Wi-Fi. these are functions that consume huge amounts of energy.

The charge level stands on the spot

Check the power socket and charger. Try connecting the phone to another current source. Also check the cable for visible damage, especially near the plug. There most often happen the breaks of the cord due to overs.

Another of the most popular reasons is damage to the connectivity. It is possible that dirt gathered in it or an important contact was broken. Do not forget to check and check the cable plug. He can be very mad.

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Charging does not work

Most likely damaged chip in the power supply. Most often, the condenser is combustion due to the permanent stopping charging in the outlet without a connected smartphone.

It is also recommended to clear the contacts of the connector in the phone. This will help the match or toothpick. If charging does not charge, then it is best to connect the device to another power supply unit. In the absence of any changes, it is recommended to attribute the device to the service center.

The power supply is very hot

Do not use the phone while charging. So it creates a large load on the internal components of the adapter. Try to turn off the smartphone while charging. You can not cover the phone or put it under the pillow. With very strong overheating, the charging unit is required to the service center.

Question: Is it harmful every time to charge the phone quick charging?

In fact, the smartphone is charging quickly only to half (when it is safe for the battery). further electrical power decreases (due to reduction of current or voltage) and the phone continues to charge already slowly. If fast charging was not turned off, it might lead to a swollen battery and its quick degradation.

Apparently, a fast charge is the inevitable development of technologies. And in the near future, “slow” charging will simply disappear. Therefore, there is no point in avoiding fast charging.

Brief summary

Summing up, summarize key points:

  • The smartphone is not discharged to 0%, with the exception of periodic prophylaxis;
  • If the device is discharged, put it as soon as possible for charging;
  • If possible, recharge the smartphone during the day, maintaining the optimal level of charge;
  • Do not overheat battery.

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If you stick to these non-cunning rules, you can noticeably extend the life of your smartphone.

Charging Mobile Device (Smartphone)

This requires a cable, one end of which is suitable for the USB device connector, and the other end suitable for login to the smartphone (micro USB connector). Next, we take the following steps:

  • Disconnect the battery from charging by attaching it to your phone.
  • Turn on the external battery to power your mobile device.
  • Take a message about the completion of the charging process on the smartphone.

After the process of recharging, focus on the LED light bulb. The power source itself can be charged from any electrical outlet. Remember that charging an external battery is possible only under the condition of the power source (automatic, laptop, computer). Charging the battery from a USB device lasts from 2 to 4 hours. Charging the battery from the USB input of a landline computer to 8 hours.