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1. • • It is, according to Apple, ‘significantly degraded’ if your iPhone’s battery’s battery health diminishes below 80%. This doesn’t mean your phone is immediately going to break, but it does mean it’s bumping down the performance scale. Because they’re at 79%, expect reduced battery life and or even slower performance.
     itigic.com/iphone-at-79-battery-health-should-you-replace-it-now/

     iPhone at 79% Battery Health: Should You Replace It Now? - ITIGIC

2. People also ask

   How do I know if my iPhone battery is healthy?

   • For iPhone 6 and later, iOS 11.3 and later add new features to show battery health and recommend if you need to replace the battery. You can find these in Settings > Battery > Battery Health (with iOS 16.1 or later, find these in Settings > Battery > Battery Health & Charging).

   iPhone battery and performance – Apple Support (UK)

   support.apple.com/en-gb/101575

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   How long does a battery last on an iPhone?

   • Your iPhone should retain up to 80 percent of its original battery capacity after 500 complete charge cycles. Once the battery health percentage drops below 80 percent, the amount of charge your battery can hold starts to diminish. However, that doesn’t mean you should rush to get a new battery. That number is just for orientation.

   At What Health Percentage Should I Replace My iPhone Battery?

   appletoolbox.com/at-what-percentage-replace-iphone-battery/

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   Does my iPhone need a new battery?

   • Apple Support will walk you through the battery health readings and can advise you if your iPhone needs a new battery in the future. If you determine that you need (or want) to replace your iPhone’s battery, first find out if your battery is covered under your iPhone’s Apple Care warranty.

   When should I replace my iPhone's battery? How to use Apple's battery

   appletoolbox.com/check-iphone-battery-health-decide-replacement/

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   What happens if my iPhone battery is compromised?

   • If your iPhone’s battery is compromised but still able to function somewhat normally, Apple puts your iPhone into battery performance management. When performance management is applied, you see a message: “ this iPhone has experienced an unexpected shutdown because the battery was unable to deliver the necessary peak power.

   When should I replace my iPhone's battery? How to use Apple's battery

   appletoolbox.com/check-iphone-battery-health-decide-replacement/

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   Does IOS 11.3 have a battery health feature?

   • Apple's 2018 launch of iOS 11.3 came with the Battery Health feature—a mea culpa amidst legal battles related to "Batterygate," when the company deliberately slowed older iPhone models without notifying users.

   How to Tell if You Need a New iPhone Battery | PCMag

   www.pcmag.com/how-to/how-to-tell-if-you-need-a-new-iphone-battery

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   Do rechargeable batteries affect iPhone performance?

   • "Batteries are a complex technology, and a number of variables contribute to battery performance and related iPhone performance," according to Apple's support page. "All rechargeable batteries are consumables and have a limited lifespan—eventually their capacity and performance decline such that they need to be replaced.

   How to Tell if You Need a New iPhone Battery | PCMag

   www.pcmag.com/how-to/how-to-tell-if-you-need-a-new-iphone-battery

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3. appletoolbox.com › at-what-percentage-replaceAt What Health Percentage Should I Replace My iPhone Battery?

   appletoolbox.com › at-what-percentage-replace

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   Nov 25, 2022 · At What Battery Health Percentage Should I Replace My iPhone Battery? Your iPhone should retain up to 80 percent of its original battery capacity after 500 complete charge cycles. Once the battery health percentage drops below 80 percent, the amount of charge your battery can hold starts to diminish.

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4. support.apple.com › en-us › 120745If the battery in your iPhone drains too quickly - Apple Support

   support.apple.com › en-us › 120745

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   Aug 29, 2024 · Low Power Mode reduces the amount of power that your iPhone uses. When Low Power Mode is on, certain settings and features, like Mail fetch, Hey Siri, Background App Refresh, and some visual effects, are reduced or disabled. To use Low Power Mode, go to Settings > Battery and turn it on.

5. support.apple.com › en-gb › 101575iPhone battery and performance – Apple Support (UK)

   support.apple.com › en-gb › 101575

   • Cached

   For iPhone 6 and later, iOS 11.3 and later add new features to show battery health and recommend if you need to replace the battery. You can find these in Settings > Battery > Battery Health (with iOS 16.1 or later, find these in Settings > Battery > Battery Health & Charging).

6. Videos

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     iPhone 6 Battery Replacement in 4 Minutes

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     Tutorial: Detailed step by step Battery Replacement Guide for iPhone 6S (Plus)

     1 Jan 2018

     1.9M views

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     6 Signs You Need a New iPhone Battery

     6 Sep 2018

     1.2M views

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7. support.apple.com › guide › iphoneCheck the iPhone battery health and usage - Apple Support

   support.apple.com › guide › iphone

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   • Overview
   • Review your iPhone battery health
   • View your battery usage information

   You can view information about your iPhone battery health and learn how your iPhone usage affects the battery level.

   See full list on support.apple.com

   Go to Settings > Battery, then tap Battery Health & Charging.

   iPhone displays information about your battery’s capacity, peak performance, and whether your battery needs to be serviced.

   See full list on support.apple.com

   Go to Settings > Battery.

   Information about your battery usage and activity appears for the last 24 hours and up to the last 10 days.

   •Insights and suggestions: You might see insights about conditions or usage patterns that cause iPhone to consume energy. You might also see suggestions for lowering energy consumption. If a suggestion appears, you can tap it to go to the corresponding setting.

   •Last Charged: Indicates how fully the battery was last charged and the time it was disconnected.

   •Battery Level graph (in Last 24 Hours): Shows the battery level, charging intervals, and periods when iPhone was in Low Power Mode or the battery was critically low.

   •Battery Usage graph (in Last 10 Days): Shows the percentage of battery used each day.

   See full list on support.apple.com

8. www.pcmag.com › how-to › how-to-tell-if-you-need-aHow to Tell if You Need a New iPhone Battery - PCMag

   www.pcmag.com › how-to › how-to-tell-if-you-need-a

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   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...

9. appletoolbox.com › check-iphone-battery-healthWhen should I replace my iPhone's battery? How to use Apple's ...

   appletoolbox.com › check-iphone-battery-health

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   May 18, 2020 · For folks with an iPhone 6 and later, that use iOS 11.3 and above, Apple includes a feature to show your device’s battery health. That features also recommends if you need to replace a battery. Find your iPhone’s battery health features in Settings > Battery > Battery Health.

10. www.ifixit.com › News › 11211What to Do With a Swollen iPhone Battery - iFixit

    www.ifixit.com › News › 11211

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    The battery casing is built to contain that nasty gas—so, inevitably, it bloats up. How to tell if your battery is swollen. From the outside, a swollen battery can manifest as a hazy white screen (due to pressure on the display).