What happens if my iPhone has 75% or 79% battery


To check your iPhone’s battery health, go to Settings > Battery > Battery Health. Towards the top of the screen, you’ll notice the Maximum Capacity section. This tells you your battery’s charging capability in relation to when your iPhone was brand new. The higher the number, the longer you can go between charges.

Below that, you’ll see a message regarding your battery’s Peak Performance Capability. The message you see is dependent on the maximum capacity percentage you see above.

Optimized Battery Charging

The major reason why your battery is not charging beyond the 80% mark is because your phone isn’t letting it. Yes, you read that right. Your iPhone’s battery isn’t faulty; neither is the phone spoilt or anything. But why?

The agent responsible for your iPhone not charging past 80% is known as ‘Optimized Battery Charging.’ That was one of the many features that were introduced on iOS 13. The ‘Optimized Battery Charging’ feature delays your phone’s battery charge at 80% for as long as you aren’t using your device.

Cosmetic Condition

The cosmetic condition of your iPhone may be the most important factor in your iPhone’s value other than its age and model. What is “cosmetic condition”? It’s the culmination of the wear and tear on your iPhone throughout your ownership. We all know that screens can crack, metal frames can dent or scratch, and core components can begin to fail due to things like sudden falls or liquid damage. However, be prepared for the depreciation every time your iPhone takes a hit or collects a new scratch.

Tips to Extend Your iPhone’s Battery Lifespan

  • Keep your device up-to-date to enjoy the latest battery-focused software improvements.
  • Don’t use your device in extreme temperatures. And if you really have to, don’t expose it to extreme temperatures for too long or too often.
  • Remove the case while charging. Take out the case if you’re using the device in a hot environment to prevent the battery from overheating.
  • Don’t use third-party cables and chargers to charge your iPhone. Go full Apple.

While your iPhone’s battery starts degrading visibly after reaching 80 percent of battery health, it doesn’t necessarily mean you should get a new one. If the device still holds a sufficient charge to power you through the day, keep using the same battery. Replace it when you notice major performance issues or the device becomes unusable.

“All-Day Battery Life” versus personal experiences

Apple promotes the latest MacBook Pro to have “impressive all-day battery life” on their website, and they have used similar language to describe other recent model MacBook Pro and MacBook computers as well.

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