Reasons why the phone battery charge changes after restart

 

Our phones have become an important role in our daily lives, and the issue of the phone battery charge is one of the things that all mobile phone users are keen to pay attention to lest the battery charge runs out at a critical time and we desperately need to use our phones. Imagine, for example, that you got lost in a desolate place and desperately need GPS guidance or use Google Maps to find out how to get to a specific place, or you need to ask someone for help urgently, or your car has broken down on the road where it shouldn't It crashes, what if you look at your phone screen at that moment to find that the battery charge is low and not enough to operate the phone until you reach the nearest place that provides an electrical socket?

 

You might argue that you simply wouldn't get into this situation as you always make sure to check the phone's battery percentage before you leave the house, but what if the phone battery tricks you? What if you were carrying a phone with a battery charged at 80% for example and had to restart the phone for any reason and then looked at the phone screen to find that the battery charge had dropped to less than 20%?

 

This actually happens with some smartphone users, as they restart the phone for any reason to be surprised by the battery charge level has changed, whether it is high or low, which raises their concern about the safety of the phone battery or its operating system. Below we discuss the reasons why the phone battery level has changed after restarting the phone and the solutions available to solve this problem

 

Reasons for battery percentage change after restarting the phone

 

At the outset, we should point out that the phone battery charge percentage does not represent an accurate measurement of the percentage of energy stored inside the battery from its total capacity, despite the voltage measurements used to estimate this percentage.

 

Most smartphones currently use lithium-ion batteries, for which there is still no known measurement method that allows an accurate estimate of their charge level, and all that can be done are only approximate calculations based on a number of factors such as voltage, power consumption, and initial capacity battery, among other factors.

 

In many cases, a slight instantaneous rise occurs in the estimated value of the battery charge percentage after restarting the phone, and the charge percentage quickly returns to its previous value before or near the restart, but in other cases, this phenomenon continues and the charge percentage does not return to what it was before Reboot the phone, as a result of one of these reasons listed below.

 

The first reason: is a calibration error

 

A lithium-ion battery consists of negative electrodes made of carbon and positive electrodes made of lithium cobalt oxide, which contains the lightweight element lithium, a chemically highly reactive element that contains one electron in its valence shell, which makes it highly reactive, and this property gives it the ability It stores a lot of energy in its atomic bonds; Therefore, lithium-ion batteries have the ability to store energy at a very high density, as a standard lithium-ion battery can store up to 150 watts of electricity per hour of charge, while a standard nickel-hydride battery stores in the same volume about 100 watts/hour From electricity only.

 

The battery's positive and negative electrodes are immersed in an organic solvent that acts as an electrolyte and is separated from each other using a very thin, perforated plastic sheet to allow ions to pass through. The mechanism of action of the lithium-ion battery is that the lithium ions when charged flow through the electrolyte and move from the positive electrodes to the negative electrodes to bond with carbon, and this process is reversed when the battery is discharged, so the lithium ions move again from the negative carbon electrodes to the positive lithium cobalt oxide electrodes.

 

Lithium-ion batteries naturally degrade and decrease in efficiency over time, and this happens so slowly that your phone cannot accurately discern these changes. The battery is completely full of energy and shows a charge of 100% when the actual battery charge reaches 95% of its initial capacity, which the phone has not yet adapted to due to the calibration error of the new battery capacity to find that the percentage of charge that it displays after fully charging has decreased to 95%.

 

The solution to this discrepancy between the displayed percentage and the actual battery charge rate is to perform a simple process of recalibrating the battery capacity.

 

How to recalibrate the phone's battery capacity

 

In principle, the phone battery calibration process is not different from the laptop battery calibration at all, but there is a difference in the steps through which the process is carried out. Also, the process of recalibrating the phone battery is not necessary unless you want to know the percentage of remaining power in the battery more accurately at all times, then you can perform this process periodically every two or three months by following these steps:

 

. Use your phone until the battery is fully drained, that is until the battery power drops to the level at which the phone turns off.

. Fully recharge the battery of your phone while it is still turned off without turning it back on, and it is preferable to keep it connected for an hour after the battery charge is 100% to make sure that the battery is completely filled with electrical energy.

. Now restart the phone and make sure that the battery charge that appears on the screen is 100%, then unplug the phone from the power socket.

This is how the battery re-calibration process is completed. Return to using the phone normally.

 

Note: It is not recommended to repeat this process before a few months have passed, as this may affect the efficiency and life of the lithium-ion battery, which is not recommended to be fully discharged or fully charged.

 

The second reason: is the low ambient temperature

 

Using the phone's battery in extremely low temperatures affects the health and overall life of the battery, and may also cause the screen to display the wrong percentage of charge when placing the phone in a warmer location and restarting it. In general, it is preferable to keep the phone at all times in an environment with a temperature ranging between 0 degrees Celsius and 35 degrees Celsius and to avoid hot weather as well as excessively cold weather to preserve the safety and efficiency of the battery.

 

If you have to be in a very cold place, try to keep the phone in your pocket, close to your body, to keep it as warm as possible.

 

Reason 3: sync error

 

This error often occurs in all smartphones, but it is more common in iPhone phones in particular. A number of iPhone users in recent years have noticed that by restarting the phone, the percentage that expresses the battery charge level increases, and some believe that the reason behind this is due to some kind of glitch in the iOS operating system, or that the phone simply recalibrates the battery charge percentage when restarting run it.

 

However, this problem does not appear in all iPhone phones, but in a small percentage of them, especially the old ones such as the iPhone 6 and iPhone 6 Plus. This may happen in some cases, in addition to the aforementioned reasons, when the iPhone operating system loses its sync with the battery, and restarting the phone in this case restores the sync correctly, for example, if you see a 9% charge and then restart the phone to find it has become 13 %, the charge percentage (13%) is the closest to the accuracy.

 

But the sync error may persist sometimes and the battery charge remains lower than the actual charge value even after restarting the phone, in which case this problem can be resolved by resetting the phone settings.

 

How to solve the problem of the wrong sync of iPhone batteries

 

You should follow some steps to reset the phone settings in order to restore the sync between the phone's operating system and the battery properly without losing any data. First, go to Settings and then scroll to the bottom and tap on the “General” option. From the menu that appeared in front of you, click on the “Move or Reset iPhone” option, then click on “Reset All Settings” or “Reset All Settings”.

 

Now you will now be asked to enter your phone passcode, then tap on Reset All Settings again. In the end, you will see the Apple logo on the screen with a progress bar announcing the completion of the process of resetting the phone settings. The phone will reboot automatically and you should now reset the password and connect to the Wi-Fi.

 

Sync errors can sometimes also be caused by flaws in the iOS app version that can be fixed by accepting phone updates, so always make sure you're using an updated version of your phone's operating system.