No, upgrading to iOS 14 does not reduce the battery life of your iPhone … on the contrary


iOS 14 has been around for a few weeks now, and if your iPhone is compatible, you don’t have much excuse for not having switched to it already. We have even prepared a small file for you which includes all our iOS 14 tips to get the most out of this new version of Apple’s operating system.

Because iOS 14 is rich in important new features, and has even already received a first update for fix an annoying bug which reset the choice of default applications at each restart.

iOS 14, less battery life? Yes…

Despite all this, you may be hesitant to take the plunge, because you have read here and there that the autonomy of the iPhones suffered from this transition to iOS 14?

First of all, you should know that the switch to a new OS on a smartphone can lead to a real or apparent decrease in battery life. Fortunately, this is usually only temporary, unless there is a bug or problem. It may happen that in the days following an update, the autonomy of your phone decreases a bit. This can be related to system operations, such as reindexing files or extensions, or even more simply recalibrating the battery. Tasks necessary for the proper functioning of the operating system or smartphone that consume energy and which will cease to weigh on the autonomy when completed after some time.

Obviously if the problems persist, check the condition of your iPhone battery in Settings / Battery / Battery status.

But no…

Seeing that many users reported feeling their iPhone was less durable, we made the decision to resubmit an iPhone 11 Pro to our multi-purpose battery life tests, an intensive simulation of daily use.

We reset this iPhone to reduce side effects that would have unnecessarily prolonged or distorted our measurements, then we performed our tests on iOS 13, twice. We then upgraded the iPhone 11 Pro to iOS 14.

As you can see in the table above, we performed three tests under this new version of Apple’s mobile OS. Why ? Because the difference in result between the first two tests was too large (and can be explained by tasks that operate behind the scenes, as we said). We therefore redid two versatile battery life tests after this first run under iOS 14. Two interesting points emerge.

The first that battery life is much better with the new version of Apple’s operating system. We gain 23 minutes of battery life on average compared to iOS 13, if we count the first run, and 31 minutes if we only consider the last two which seem to be stable results. In other words, switching to iOS 14 makes a big difference every day. Obviously, results will fluctuate depending on the iPhone model and the state of its battery wear. So much for the first notable point.

The second point is just as interesting and shows how a recent iPhone, being about a year old, loses “natural” battery life. Because, for the record, this same device had held up to 6:01 pm, with these same tests in September 2019. In other words, about twenty minutes have gone by in a year … And a priori this case is not isolated.
It is therefore good to have in mind this normal drop in endurance of your smartphone and especially to make sure to preserve the battery as much as possible. This is why we recommend that you activate the option Optimized battery charging, always in Settings / Battery / Battery status.

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