iOS 13.7 Battery Life / Battery Drain / Battery Performance Test.

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Hello everyone, and welcome to the iOS 13.7 battery performance video.

This video was shot 3 days after iOS 13.7 was installed, so it had time to settle in. I have seen many comments that it takes about a week for battery performance to optimize it self after an iOS update. I have always been skeptical on this statement as I have never personally had bad battery life right after I update. If I restore and download backup from iCloud well then that is another story. So I decided to run the battery test 3 days after I updated them. In those 3 days they were just idling with power connected. So let's run the battery test again, and see if we will get some different results this time around.

Before the test was run the devices were set to 25% display brightness, auto brightness has been disabled, all devices use same settings, and are connected to the same access point.

How Geekbench works :

Geekbench 4 battery scores measure the battery life of a device when running processor-intensive applications. It provides a consistent workload to the device, and generates a Geekbench score by evaluating the amount of work that it is able to do while the battery is discharging and the amount of time it takes for the battery to discharge.

The battery benchmark can be run in Full Discharge mode, from 100% to 0% battery level, to provide a high level of confidence in a device's battery performance. The battery benchmark can also be run in Partial Discharge mode, for 3 hours. If the battery benchmark is stopped after 10 minutes, by the user or by the battery reaching 0%, then the result will be saved and can be uploaded. Battery benchmark scores gathered by any method except the Full Discharge mode provide a medium level of confidence in a device's battery performance, and longer tests are more reliable.

When comparing scores, remember that higher scores are better, and double the score indicates double the performance.

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Niwel is a french music producer.

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00:00 Initial Setup
01:29 Battery Test Start
03:12 Results


So all devices were at the same battery health for this test, as they were the last time. All at 100% except for the SE (98%) and the XR (97%). So when comparing to iOS 13.6.1 some devices did fantastic, others..... not so much. The iPhone SE dropped by 10 points, which I consider no change since 13.6.1, the 6s gained 30 points, which is great, the iPhone 7 gained a wopping 309 points, the iPhone 8 also gained significantly by 176 points. The iPhone XR gain 15 points. All good so far, but here comes the horror stories. The iPhone 11 dropped 165 points which is the worst score yet. It peeked at iOS 13.4.1, 816 points higher than today. Same goes for the SE 2020, it is down 77 points. It also peaked on iOS 13.4.1, 295 points higher. Conclusion? Battery life is great for older models, newer models... not so much.


Things to note when viewing these scores. Since the last test the iPhone XR dropped 1% to 97% in battery health. The 2020SE is now again on 100% battery health where it was 99% the last time. The SE, SE 2020 and the 6S increased in battery life, as did the iPhone XR (even though it dropped 1% in health), The 7, 8 and the 11 dropped in battery life. The worst one for sure the iPhone 11, which now matches run time of the XR even though it is a 97% battery healt. Go figure. It was a very hot evening I recoreded this video 27 degrees celcius, I had a fan blowing on the devices, not sure if that has any impact on the scores. Battery life is a tricky thing to measure. So you may see different performance on your devices. Let me know how battery life is for you, in the comments below.