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The Guardian - UK
The Guardian - UK
Technology
HAL 90210

Apple 'fixes' inaccurate MacBook Pro battery estimate – by removing it

old macbook pro battery meter
Apple has stopped estimating how long is left before the power runs out on its laptops, limiting users to just a percentage or a battery meter on the side of older Macs. Photograph: Bastian Greshake/Flickr

Apple has issued a “fix” for battery life complaints from users of its new MacBook Pro and other Mac computers.

The latest MacOS update, 10.12.2, has tackled the issue of frequently inaccurate battery life estimates by removing the feature. The change means users will no longer be provided with any estimate of how long their Apple laptop battery will last, except the percentage left, and therefore be unaware when it underperforms.

The update which “improved the stability, compatibility and performance” of Mac computers and is “recommended for users”.

Battery life estimates have always been notoriously unreliable. Some point to the power consumption variability of modern processors, which have the ability to ramp their performance up and down in response to the task at hand and therefore alter their power requirements, as the biggest issue in attempting to calculate the remaining time left.

Some of Apple’s laptops also include two graphics cards – one energy efficient integrated GPU and one discreet, more powerful one. When the graphics demands of an app currently running breach a threshold, the power-hungry graphics card fires up, which has a significant impact on battery life.

But many users are unhappy with the removal of the feature.

Microsoft’s Windows 10 continues to give estimates of battery life under similar conditions with the same types of processor and graphics card configurations. Apple’s battery meter is now limited to percentage remaining only.

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