My launch day iPhone 13 Pro that I've been using since 24.09.2021 is still at 100%. I basically only charge it at night using the 5W adapter, maybe that's helped. But I also believe the original actual capacity was above the design capacity, meaning the degradation its experienced probably just isn't yet shown on the software side. (Image credit: Tom's Guide) The iPhone 15 Pro turned in the lowest battery life in our testing. The handset lasted 10 hours and 53 minutes, which is 40 minutes longer than the iPhone 14 Pro.
The baseline iPhone 13 has a battery capacity of 3,227mAh and is rated to last up to 2.5 hours longer than the iPhone 12. Per Apple's battery tests, that works out to up to 19 hours of video playback, up to 15 hours of streaming online video, and up to 75 hours of audio playback. The iPhone 13 mini is technically worse in every way, though it's

I've had my 13 Pro since release day, so almost 3 months. Have run the battery below 10% multiple times, charge it to 100% overnight on a MagSafe charger every single night. Battery capacity is still at 100%. The battery capacity in iOS is a rough estimation. 99% could still be 99.9%. 100% could really be 104% or it could really be 97%.

(Image credit: Tom's Guide) The iPhone 14 Pro's 3,200 mAh battery took 10 hours and 13 minutes to drain, compared to 9:28 for the regular iPhone 14 and its 3,279 mAh battery.
The battery health of the iPhone 13 pro dropped to me today, after 2 months of use. From 100% to 99% .. 6 months with no drop in battery capacity (aka "Health . 320 313 29 349 198 2 275 295 324

battery capacity of iphone 13 pro