Click to suffer. This useful feature of the new iPhone wastes your nerves, although it should be the other way around

I bought my sister an iPhone 15 for her birthday and while I was checking it out, pay attention to the “Limit Charge” feature. This limits battery charging to 80%, a proprietary feature of the entire iPhone 15 line.

Out of curiosity, I decided to try it – and very quickly ruled out reasons that I did not expect.

Someone will get it and endures?

Why limit iPhone charge level at all?

Briefly about the function “Charge limit”. She is in Settings → Battery → Charging optimization.

There is research-confirmed data: in order to extend the life of the battery, it is advisable to maintain it in a state of average “charge” for as long as possible. The gap between 20 and 80 percent of capacity is considered extremely harmful. Conversely, a discharge state between 0 and 20%, as well as a charge between 80 and 100%, more strongly preserves the vital cells in the batteries.

Apple can in no way figure in the last 20% of the charge, but in the final “one fifth” it can easily. The power controller in the iPhone 15 may prevent the device from charging above 80% capacity. This is what the function is responsible for Charge limit.

Theoretically, a feature “Charge limit” should be appreciated reduction in the number of battery cycles accumulated throughout the year. The device will still sometimes (how often and when is unknown) be charged to 100% so that the controller can keep track of the cell capacity. But this should happen rarely.

Sounds good. After all, it’s fashionable to worry about your smartphone’s battery, but replacing it after a couple of years of use is “lazy” and “expensive.”

Why is this feature more annoying than helpful?

If you Charge limit, iPhone will almost never be charged to 100%. In a week and a half of use in this mode, I saw 100% only once – on the second charge when the feature was activated.

respectively, you will always have 80% in your hand. And this is the strangest situation in this (otherwise) quite useful function. You leave the house, and you are already at 75%. At lunchtime it’s already 50%. By evening it’s good if it’s 30%.

Yes, the iPhone will last until the night, especially if it is no more than a year old from its first activation. But how long will you last?

Now, every time you pick up your iPhone, you are constantly confused by the unusually low charge level. And by the second day, this 50%, or even 30%, begins to seriously strain you. You know that everything is OK, it should be so, and you clearly have enough. But you still subconsciously begin to be cautious and even worried, especially if you know that charging the device will not happen soon.

Apple thought through the serious side of the feature. And completely ignored psychological. We were offered a 20% discount on battery charge in exchange for extending the battery life, but ultimately eliminating them from the headphones.

What should have been done? Just recalculate the displayed battery incidents and make 80% of the actual capacity look like 100%.

This would not make the iPhone work longer, but it would make it much easier for its owner to manage how much time his iPhone has left to work. Moreover, one could get used to it much faster. After all, we all know from personal experience how long a device works when it has such and such a percentage in the laboratory. But when the report starts from the 80s, and especially if it’s a new iPhone, how can you even count anything?

If you left it at 100%, you could quickly forget that this feature is enabled. And then, after a year or two, I was glad that you had much fewer cycles and better battery condition than others without this feature.

Or am I the only one and you take advantage Charge limit without a hint of beginning regret, endure the day with 80% and end it with 20% on the new iPhone, without paying any attention to it at all?