The information is available on the Apple Support page regarding iPhone Battery Service. When you get an estimate of what the repair will cost ... of-warranty Mac or iPad will get more expensive.

Instead of relying on a phone insurance plan, I was able to use a credit card perk to get reimbursed for some of the repair ...

Apple has announced that it is increasing the cost of out-of-warranty iPhone battery replacements for all models older than the iPhone 14 later this year. "The current out-of-warranty battery ...