How long will Apple 1 1 Battery Health 84 last?

5 hours

It will last for another five hours.

If the battery health of Apple iPhone is 85%, there is no need to replace the battery. Apple's warranty,

If the Apple phone is under the one-year warranty or the warranty of the AppleCare plan,

If the storage capacity of the battery is only 80% or less, you can go to the Apple Store or an Apple authorized service provider to replace the battery of the Apple mobile phone for free.