iOS settings have battery protection mechanisms that help reduce wear and tear over time. They’re called Optimized Battery Charging and are capped at 80%. Each feature has specific goals, but which one to choose to really help ensure iPhone battery health is something many iPhone users are concerned about.
Optimized battery charging
For years, iPhone has had Optimized Battery Charging turned on by default. This way, from day one, iPhone proactively protects the health of its battery.
iPhone will learn users' charging habits to optimize battery charging
What does it include? To understand it perfectly consider the following example:
- You go to bed at 11pm and wake up at 7am.
- You charge your iPhone at night and it starts charging.
- The iPhone will maintain its maximum charge at 80% until 1 hour before you wake up, at which point it will boost the battery to 100%.
So with Optimized Battery Charging selected, we avoid leaving the iPhone at 100% for hours, which is one of the actions that degrades the battery life the most. The most important thing for Optimized Battery Charging to be effective is to maintain a similar charging schedule every day, preferably overnight charging. This way, the iPhone will know when the user can pause charging and continue charging to reach 100%.
Is it reasonable to limit charging to 80%?
Now let’s start with one of the most recent features, which is from the iPhone 15, where users can choose to limit charging to 80%. This way, the iPhone will never charge past 80%, no matter how many hours the user charges it.
80% charge limit is a new feature on iPhone 15
The thing is, you need to let your iPhone charge to 100% every now and then, as this is meant to help calibrate the battery percentage. This 80% charge limit feature is ideal for people who charge their iPhone multiple times a day and want to make sure that the charge never stays at 100% for too long.
If you want your battery to last as long as possible, enable this option. However, consider how many years you plan to use your iPhone model and whether the 80% limit is enough to get you through a day of use.
Which settings to choose for the battery?
Here’s the most controversial part, though. Limiting the charge to 80% means the iPhone has 20% less battery capacity than it does by default. That’s why the most interesting option is to enable Optimized Battery Charging and enjoy your iPhone running at 100% capacity for a year or two. And when it degrades, you’ll still get the same experience as if it were at 80%.
Optimized battery charging is a recommended feature to use as a priority.
On the other hand, this is something we have to accept. The battery in an iPhone, an electric car, or any other device, is inevitably going to wear out. After daily use, it will degrade no matter how many settings we enable that only delay the wear, but eventually the day will come when we need to replace the battery.
In general, users are advised to enable Optimized Battery Charging and carry an iPhone charger with them at all times.
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