iOS 12.5.3 Battery Life Drain Compared On Old iPhone Models

Apple recently released iOS 12.5.3 to the public and while it isn’t designed for Apple’s newer iPhones, it’s a big deal for those with older ones.

This update includes an important fix for a Webkit issue that could have impacted the devices’ security and you should absolutely install it ASAP if you haven’t already. But how does that update impact an older iPhone’s battery life.

We already know that older iPhones can sometimes suffer from poor battery life because their batteries are a little on the aged side. That’s to be expected, but sometimes new software updates can make matters better or, more likely, worse. That’s something YouTube channel iAppleBytes sets out to find out.

Testing battery life on an iPhone 6 using Geekbench, iAppleBytes did exactly that. Check it out.

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.

We won’t spoil the outcome because you should absolutely check the video out. You’ll also see how an iPhone 5S and iPhone 6 stood up to iOS 12.5.3 in terms of performance changes, too.

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