In the U.S., Apple is charging a higher $129 out-of-warranty fee to replace the battery in an iPhone 18 Pro or iPhone 18 Pro Max compared to previous models, according to its website.Apple has always charged $119 to replace the battery in iPhone 16 Pro and iPhone 17 Pro models, so the fee has increased by $10 for the iPhone 18 Pro models, which have larger batteries.If your iPhone has AppleCare+ coverage, though, Apple will replace the battery for no extra charge if its capacity has dropped below 80%.
You can check this in the Settings app under Battery → Battery Health.
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