Battery Life

ASUS outfits the Vivobook Pro 15 with a 63 Wh battery, which is perhaps on the small size for a 15-inch notebook, but with the light weight of this design it makes more sense. OLED displays can be very efficient on darker content, but one of the bigger problems in the PC space is that so much content is bright so that will certainly impact the results as well.

Web Battery Life

Battery Life 2016 - Web

As expected, the OLED display is somewhat of a burden on the web test, where most of the websites have a light theme. Battery life is still good, but not spectacular.

Battery Life 2016 - Web - Normalized

Looking at the normalized results where the battery size is removed from the equation further confirms this. Platform efficiency is not fantastic especially compared to the Surface Laptop Studio which has a 35-Watt CPU and larger GPU. This is the biggest drawback for OLED on a notebook computer, even with the operating system supporting dark mode. Until all of the applications support dark mode, and especially web, OLED is definitely going to impact battery life in a negative way.

PCMark 10 Modern Office Battery

PCMark 10 Modern Office Battery

UL’s PCMark 10 battery life test does fare better than our web browsing test. The test does not always run full-screen with light-colored applications so the OLED display does not cause as large of an impact to the battery life results.

Movie Playback

Battery Life Movie Playback

Media playback is often one of the least demanding tasks thanks to the video decode being offloaded to fixed function hardware that is very efficient, and OLED does well here with the dark scenes allowing the power advantages of OLED to be shown.

Battery Life Tesseract

The Tesseract score divides the movie playback time at 200 nits by the length of The Avengers to give an idea of how many movies can be watched on a single charge. With five movies plus, the Vivobook Pro 15 OLED can definitely do well as a media playback device.

Charge Time

The other side of the equation for mobility is charge time. The Vivobook Pro 15 ships with a 120-Watt AC Adapter to power it during high-demand loads, so the charge rate certainly won’t be held back by the power input. Manufacturers still limit the charge rate though to protect the battery longevity.

Battery Charge Time

To refill the 63 Wh battery takes just 145 minutes, which is quite good. To get to 50% charge took just 38 minutes, so a quick fill-up on the go is in the cards.

Display Analysis Wireless, Audio, Thermals, and Software
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    Replaceable panels, easily installed by users, would be a welcome accommodation for OLED in PCs.

    But, planned obsolescence is the driver behind ‘profit’-seeking.
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