Change Your Charge Limit
At this point, we all know that your iPhone’s battery will age over time. Unfortunately, this happens to all batteries because of the charging cycles they undergo during their life span.
However, Apple knows this and added a feature in iOS 18 to help you set the charging limit on recent iPhone models. That way, you can set your iPhone to stop charging once it reaches 80% instead of 100%.
This will reduce the stress on your battery from constantly topping it up to maximum capacity and leaving it there, which can extend the longevity of your iPhone’s battery.
Note that this feature is only available on the iPhone 15 and later models. Older iPhones can still use Optimized Battery Charging to minimize the time your iPhone charges above 80%, but there’s no way to force it to stop there. Here’s how to change your Charge Limit:
- Open the Settings app.
- Scroll down and tap on Battery.
- Go to Charging.
- Under Charge Limit, use the slider to set the charge limit you want for your iPhone.
After using your iPhone for long enough, you’ll get a suggestion of your charge limit based on your iPhone habits. You can use that or set your own limit. However, you can only go as low as 80%.