![iPhone 13 and iPhone 13 Pro battery test shows just how much ProMotion improves efficiency [Video] - 9to5Mac iPhone 13 and iPhone 13 Pro battery test shows just how much ProMotion improves efficiency [Video] - 9to5Mac](https://i0.wp.com/9to5mac.com/wp-content/uploads/sites/6/2021/10/iphone-13-vs-13-pro-battery-life-video.jpg?resize=1200%2C628&quality=82&strip=all&ssl=1)
iPhone 13 and iPhone 13 Pro battery test shows just how much ProMotion improves efficiency [Video] - 9to5Mac
![I suspect my iPhone 13 battery is draining very fast. My battery is at 99% health and I have to keep the low power mode on throughout to get it through the I suspect my iPhone 13 battery is draining very fast. My battery is at 99% health and I have to keep the low power mode on throughout to get it through the](https://preview.redd.it/kexantn68pi91.jpg?auto=webp&s=24532da2e5a7e05cd8faa00652c42638c40e815c)
I suspect my iPhone 13 battery is draining very fast. My battery is at 99% health and I have to keep the low power mode on throughout to get it through the
![iPhone 13 Pro Max sets record in smartphone battery stress test, with almost ten hours of continuous use - 9to5Mac iPhone 13 Pro Max sets record in smartphone battery stress test, with almost ten hours of continuous use - 9to5Mac](https://9to5mac.com/wp-content/uploads/sites/6/2021/09/iphone-13-battery-test.jpg?quality=82&strip=all)