At what % should I replace the iPhone battery?

Apple recommends that the iPhone battery should be replaced once the battery health reaches 80% or lower.

Axel F.

ethanongwt Said:

"At what % should I replace the iPhone battery?: Hi, Folks My iPhone 11 Pro Max battery health is at 89%. At what % should I replace the battery? Thanks."

-------

For Note:

The percentage may fluctuate. The percentage shown is only a guestimation on Apple's part. So you may see it increase above 80%. So, bear that in mind when determining if it is time for a new battery.