What are the signs of a bad iPhone battery?

It’s time to replace your iPhone’s battery

  • Your iPhone suddenly turns off. If your iPhone shuts down unexpectedly while the battery is still fully charged, that’s not a good sign. …
  • Your iPhone only works when it’s plugged in. …
  • Your iPhone feels warm. …
  • Need to replace your iPhone battery?

How do I know if my iPhone battery needs replacing?

Go to Settings > Battery and if the health is bad enough, you’ll see a notification at the top of this screen saying your battery needs repairing. Take your phone to the nearest Apple Store to have the battery replaced (third-party repair shops may charge less). 22

What percentage should I replace my iPhone battery?

According to Apple, the iPhone battery is designed to retain up to 80% of its original capacity with 500 full charge cycles. So if the total charge capacity is less than 80% of the design capacity and the charge cycles exceed 500, then your battery is considered dead. 01

How many years should an iPhone battery last?

Your iPhone battery can last approximately 300-400 full battery cycles or full charges before reaching 80% of its original capacity. It typically lasts about two full years of iPhone usage, which is why we tend to assume that smartphones have a two-year lifespan. 31

What percentage should I replace my iPhone battery?

According to Apple, the iPhone battery is designed to retain up to 80% of its original capacity with 500 full charge cycles. So if the total charge capacity is less than 80% of the design capacity and the charge cycles exceed 500, then your battery is considered dead. 1

What are the signs of a bad iPhone battery?

Check the status of your batteries. Go to Settings > Battery. Tap Battery Health. iPhone shows information about your battery capacity, peak performance, and whether your battery needs service.

How do I test my iPhone battery?

According to Apple, the iPhone battery is designed to retain up to 80% of its original capacity with 500 full charge cycles. So if the total charge capacity is less than 80% of the design capacity and the charge cycles exceed 500, then your battery is considered dead. 1

At what percentage of battery health should you replace?

79% or less: Your battery health is significantly degraded. An Apple Authorized Service Provider can replace the battery to restore full performance and capacity. Learn more about service options… 16

Is 70% battery health good for the iPhone?

Yes, 70% is extremely low…at 80% battery health it’s usually already very low…at 70% I would expect the iPhone to shut down unexpectedly and have poor battery life…the battery…so yes, get a spare iPhone battery. You can teach yourself how to replace it or pay someone to do it.

At what stage should you replace the iPhone battery?

Once your iPhone battery has passed 500 full charges, it’s probably time to replace it. Unfortunately, iOS doesn’t report how many times your current battery has been charged, but there are other ways to check the health of your battery and determine if you need to replace it. 9

Should I replace 90% of my iPhone battery?

iPhones use lithium-ion batteries and have a high power density, but their capacity and performance decrease over time. In your case 90% capacity is good and you will have good performance. You do not need to replace your battery at this time.