2024-01-19 13:47:20
The new iPhone 15 has more detailed battery information in the Battery section of the Settings app. One of the new features is an option to limit the maximum battery charge to 80% of total capacity, to give it a longer overall lifespan.
Indeed, multiple recharges to more than 80% and discharges below 20% and heat cause the battery to degrade more quickly.
Where to prioritize?
That said, we all want the battery to last as long as possible before replacing it or purchasing a new device. To this end, the best way is to charge it only to 80%.
If, at 80% charge, you are happy with the day-to-day battery life, then no problem, limit charging to this level in the Settings app on your iPhone 15.
For example, your schedule – at the office – easily allows you to charge your device, so opt for the 80% setting.
Conversely, if your usage requires a full charge to avoid plugging in your favorite phone in the middle of the day, you have no choice but to do so, because running out of electrons is more inconvenient than a battery which degrades a little more slowly.
Beware of high heat
For the latter, the ideal is to keep the default settings up to 100% to take advantage of the full capacity of their battery to get through the day.
Aside from normal consumption, extreme temperatures and time spent in a high or low state of charge degrade lithium-ion batteries the most. We therefore avoid recharging in an overheated car in the sun,
The types of chargers matter. Fast chargers tend to heat up the batteries by dumping energy up to 80%, then slow down for the remaining 20%.
If you charge overnight while you sleep, then a simple, regular 5V slow charger will do the trick.
Optimized charging
If you take a look in Settings > Battery > Battery Charge Status, you’ll find the Optimized Charging option which learns your charging habits and keeps the battery at 80% overnight to finish charging it to 100%. % just before you need it. This already reduces the time the battery spends at a high state of charge.
In conclusion, it is always good to take a look at the energy-intensive functions and applications. Screen brightness, sleep time, location services and many others, it’s up to you to make the appropriate settings according to your needs.
The Optimized Charging function under iOS 17.2.1
Apple
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