You can expect about a 1% drop per month with average use on an iPhone. Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.

2 weeks ago - To check the health of your battery, make sure your phone is charged and then go to Settings > Battery and tap Battery Health. Here, you'll find information on maximum capacity, performance capability, and important battery messages, as well as when to change your iPhone battery.

If you are impacted by this and would like to improve your device performance, replacing your device battery can help. iOS 11.3 and later improve performance management by periodically assessing the level of performance management necessary to avoid unexpected shutdowns. If the battery health is able to support the observed peak power requirements, the amount of performance management will be lowered.

1. Battery Draining Quickly: If your battery percentage drops significantly within a short period, it may be time for a replacement. 2. Inconsistent Battery Percentage: If your battery percentage fluctuates erratically, this could indicate battery health issues.

October 16, 2024 - Apple recommends replacing your battery when its maximum capacity falls below 80%. You can check your battery’s health by going to Settings > Battery > Battery Health & Charging.

September 11, 2023 - Apple considers a battery capacity of 80% or above optimal (and not in need of replacement). Snoop around a bit further and you'll find graphs charting your battery level and activity over the last 24 hours or 10 days, with info on activity ...

June 25, 2023 - Sometimes, if you experienced a recent crash, you may see a message saying your battery was “unable to deliver the necessary peak power.” The second message means your phone has automatically turned on performance management, and the battery should be replaced soon. Toggling this option will prevent your phone from charging over 80% in order to protect the battery and increase your overall battery lifespan. This option is ideal if your phone is charging most of the time, and if you want to charge up overnight, but may be turned off if you plan to travel and need 100% charge when you depart. Settings > Battery Health. You can find your iPhone Battery Health dashboard by navigating to iPhone Settings.

February 28, 2025 - Unfortunately, iOS doesn’t indicate ... Charging feature mentioned above. However, once your Battery Health (which you can discover by following the steps above) falls to 80% it is time to get it replaced....

The quickest way to find out when to replace your iPhone battery is by checking Settings > Battery > Battery Health.

May 28, 2022 - They’ll replace it 5 times a day, if you want to pay for it ... I kept my iPhone 7 Plus until upgrading to a 13 Mini, the battery health was at 70%. Obviously it didn't hold a charge as long as it used to so that and it being on the edge of ...

Answer (1 of 9): I assume you mean, at what percentage of battery health, or max capacity would you replace an aging iPhone battery. My iPhone 12 Pro Max was at 87% health and lasting about half of what it used to be. I was going to replace it for $89, but the iPhone 15 Pro Max was released and t...

September 29, 2025 - If your iPhone battery health has dropped to 80% or lower, Apple recommends replacing it for the best performance. You can check this in Settings > Battery > Battery Health & Charging.

October 15, 2025 - For example, an iPhone 11 with good battery health should comfortably last a full workday of moderate use. If your iPhone struggles to get through the day, it may be time to replace the battery or consider a refurbished iPhone.

August 13, 2024 - If you notice lagging or slow app response times, it might be due to battery issues. Apple recommends replacing the battery when its health drops below 80%. You can check this in the Battery Health section of your iPhone settings.

If your iPhone displays a message saying, “Your battery's health is significantly degraded,” that’s a direct call to action—even if you’re just at 79 % health. Apple’s battery replacement typically costs around $69 for most iPhones in the U.S.

September 2, 2024 - An iPhone battery typically reaches ... when it was new. Apple suggests that a battery should be replaced once its health drops below 80% of its original capacity....

June 20, 2024 - Usually, your iPhone battery can retain 80% of its original capacity for the first two years, if you use it regularly. If it goes below 80% within a year, you may need to replace your battery.

January 31, 2025 - If your iPhone is in good overall ... restore its performance. This is particularly true if the battery health has dropped below 80% or the cycle count has exceeded 500 cycles....