Today we are going to analyze all this, with the different forms that the devices use, not only the Apple iPhone, to check this percentage, and what also demonstrates whether a battery is in good condition, or not, being the false ones that usually give the most problems.
How to calculate a device the battery that has left
First, the iPhone has sensors that are constantly measuring things like the voltage of the battery (the “pressure” with which the energy flows), the current (How much energy is coming out at that time), and the temperature (because heat affects the battery). With these physical data, the system can know more or less how much real energy is stored. It is not just a fixed number, since it depends on how the battery behaves at that time. For example, if it's very cold, the battery yields less, and that is taken into account.
But that is not enough, because a battery can have a 50% load and last 1 hour or 4, depending on what you are doing. There enters the second method: iOS software uses Algorithms that learn your way of using the phone. If you are sailing in safari or seeing Tiktok, consumption is different. The system analyzes which apps you are using, how much brightness the screen has, if you have the GPS on, among other things, and with that it adjusts the percentage you see above.
In addition, these algorithms are learning over time. If you use Instagram at noon and play something in the afternoon, the system takes it into account to foresee wear. That is why sometimes you think that the battery lasts more or less according to the day, it is not just what remains, it is how you are using it and what the system “expects” you are going to do. This is summarized more in the times that indicate what we could use the phone if we continue with the same rhythm, however, the percentage will be what will really tell us what we have left.
That is why, sometimes, if the battery is not original or very worn, we will see that this percentage flows much further, since its temperature will be higher than usual, its irregular supplied voltage or energy, etc., so that the system cannot foresee what it really has left, causing it to turn off at 10%, or that, suddenly, you notice how it goes wrong and goes out, since it does not reach enough energy.
Therefore, if this happens to you, you will know what it is Moment to change it to anotherand the calibration methods that you usually see online, are not very useful, since the problem is physical, in most cases, and it will be best simply a replacement of it.
