Maximizing Battery Lifespan: How to Enable the 80% Cap on iPhone 15 for Optimal Performance

2023-10-06 23:30:00
The “iPhone 15” series has been officially released. Whether you’ve already acquired the device or are looking forward to receiving it, you should seriously consider the recently discovered new features when you first set it up. The feature is called “80% Cap,” and it’s hidden deep in the iPhone 15’s battery settings. Enabling this feature will only charge your iPhone’s battery to 80% instead of the usual 100%. Apple hasn’t actually explained why this feature was included, but it’s safe to assume that the 80% cap is a direct response to recent comments about iPhone 14 battery degradation. Unfortunately, battery degradation is not a fan theory. That’s the nature of the lithium-ion batteries in iPhones and other devices, which gradually reduce their maximum capacity with each completed charge cycle. Stopping charging your iPhone 15 at 80% reduces the chance of battery degradation, but enabling this feature isn’t always the best idea. This will be explained in detail later. How to enable the 80% cap on iPhone 15 What you need: At the time of writing, the 80% cap can only be used on the iPhone 15 series (iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro) Max). It is clear that this functionality is processor independent. This is because the “Pro” model of the iPhone 15 series is equipped with the “A17 Pro” chip, while the non-Pro model is equipped with the “A16 Bionic” chip. So it’s still likely that Apple will extend this feature to older models. 1. Access the Battery Health & Charging settings First, open the Settings app and scroll down until you see the Battery tab. Next, tap “Battery status and charging.” Tip: The new iPhone 15’s maximum capacity should be 100%. Provided by: June Wan / US ZDNET 2. Enable the 80% cap Next, tap on “Charging optimization” and the following three options will be displayed. “Battery Charging Optimization”: Slowly charges the iPhone up to 80% overnight, then charges it to 100% by the time the user wakes up. “Upper limit 80%”: Charging will stop when the remaining battery level reaches 80%. Apple says that from time to time, your iPhone may be charged to 100% to maintain accurate charge state estimates. “None”: Keep the iPhone’s charging function flexible. Tap “Up to 80%” to turn it on. You can also check the maximum capacity of your iPhone’s battery on the “Battery Status and Charging” screen. In the case of the iPhone 15, which has just been released, the maximum capacity should currently be 100%. If it’s less than that, please contact Apple Support as your battery may have a potential defect. Cases in which the upper limit of 80% should be used (and cases in which it should not be used) If the following conditions apply, the upper limit of 80% should be used. You want to keep your iPhone battery healthy to extend its lifespan and increase its resale value. You can get through an average usage day or a heavy usage day without worrying about the remaining battery power. This primarily applies to the larger iPhone models (iPhone 15 Plus and iPhone 15 Pro Max). You should avoid using the 80% cap if the following conditions apply: I’m worried that an 80% battery won’t last the whole day. This is probably the case if you are traveling and have limited access to power or need to use power-intensive features such as video capture, GPS navigation, or gaming. Provided by: June Wan/ZDNET This article was originally published by Red Ventures overseas and edited for Japan by Asahi Interactive. Read all ZDNET Japan articles by email every morning (free registration)
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