Keep an eye out for warning signs that your iPhone battery isn’t what it used to be.
Although Apple’s iPhone battery technology is well integrated into iOS to provide maximum battery life while reporting health metrics and other important information, even the best engineering can’t overcome chemical limitations. Battery cells gradually degrade with each charge cycle, with temperature, age and daily use all playing a role.
Apple’s battery information page states: “When you know a little more about how they work, they can work much better for you.” ยป This also applies to recognizing when a battery is starting to fail. There are several telltale signs that suggest it’s time to replace the battery, and you should watch for them to avoid any day-to-day problems, slow performance, or sudden shutdowns.
Fortunately, identifying your iPhone’s battery health is much easier than it was a decade ago. Apple has added more battery performance information directly to the iPhone’s Settings app. Beyond that, discovering other warning signs of a dead battery will clearly let you know when it’s time to head to the Genius Bar.
iPhone Battery Warning Signs You Should Pay Attention To
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The easiest way to determine how your battery is performing is to go to Settings > Battery > Battery Status. There you will find the general condition of your Battery healthwhich can be either Normal Or Significantly degraded. The latter will be accompanied by a disclaimer at the top, suggesting that you replace the battery to regain full performance.
Below that, on an iPhone 15 or newer, you’ll see the total number of cycles. iPhone 14 and earlier are designed to achieve 80% battery capacity at 500 cycles; newer models up to 1,000 cycles.
Any iPhone should display the maximum battery capacity, which shows the current capacity of your battery compared to when it was new.. Once this figure drops below 80%, Apple considers it worn and suggests it’s time to replace it; you will notice less daily battery life at this point.
When your battery condition is bad enough, chances are you won’t need to look at the menu to figure it out. If you still need a power bank to keep your phone running throughout the day (and you’ve checked for excessive battery drain from the app), it’s time to replace it. Other major signs include a rapid drop in battery percentage and unexpected shutdowns, even when the battery percentage is well above single digits.
Slow performance, especially during heavier tasks like gaming, exporting large videos, or streaming 4K videos, could be a sign that your phone is throttling to avoid shutting down. Another red flag is if your device heats up too quickly when unplugged or barely used; This means your iPhone battery is working overtime and probably needs maintenance. And of course, if you see the battery coming out of the case, you should immediately stop using your phone and contact Apple Support, as this is a security risk.
When purchasing a new iPhone, you may have had trouble deciding whether to include AppleCare. Your average battery usage can help you make the call. With an active subscription, you will not pay service fees for replacing a battery below 80% level. For Apple service outside of an AppleCare plan, prices range from $69 for a new iPhone 6s battery to $129 to replace an iPhone 18 Pro Max battery.
