When purchasing a new iPhone we do not have big battery problemsHowever, with the passage of time, like any brand, model or equipment, it begins to degrade, especially when we approach the third year, which can cause heating problems, false percentages, or a very limited life.
Have you ever wondered how phones know the percentage of battery remaining, and why they sometimes reproduce it wrong? Surely you have ever had a mobile phone that turned off at 5%, or that took less time from 20% to 0% than the rest of its battery. Well, it has an easy explanation.
How to measure the battery of an iPhone
To answer these questions, the first thing we will have to know is how do they measure battery percentage most phones. To do this, they use the voltage, as well as relying on other data such as temperature or its total current to be more precise.
The less energy a battery has, the lower the voltage received will be, that is, if for example a battery has a maximum voltage of 3.9, this will be the one provided when it is at 100%, and if its minimum is 3.5V, this will be the one that it has at 1%, therefore, only a precise meter is needed, and when it is offering 3,565 volts, we will be able to know at what point it is in its autonomy.
Therefore, as you can imagine, these data are very precise, and a good meter and its condition are needed to calculate something realistic, that is, if the battery is already 3 years old, and its degradation is high, it can give jumps and voltage spikes that fool our phone, thinking that it has more or less than we think, hence, many times a balancing is done, as we usually call it, and we leave it connected for more hours than it should, despite reaching 100%, as well as On the contrary, do not use it or try to turn it on when it no longer fits, so that you can check if there is any voltage point below or above that indicates that it really has a different capacity than the iPhone believed.
In short, if your iPhone has percentage jumps, and you are not able to balance it, it may already have a irreparable damageand it is not a software thing, so restoring the phone is not going to help, you should change the battery, since you will not only notice an improvement in autonomy, but also in performance, heating up less and working better, since these voltage spikes are not good at all, and they produce the typical “lags” that we notice when an app gets stuck, among other reasons.
Currently, the service battery change It costs about 99 euros, although it will depend on the model, however, in official stores and SATs such as MediaMarkt, you can have it for a lower price, being completely original and carrying out the same process as in an Apple Store, so it can be a good way to save something and give a new life to your iPhone, since, as we said, if this happens to you, there is no effective solution.
