Usually, 15-inch laptops, especially the ones with powerful hardware, deliver average battery life at most. However, there are a few notable exceptions on the market and with mobile chips being so energy-efficient, things are starting to change.
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The recently tested ASUS ZenBook Pro UX550 proved that you can have the portability, the looks, the 15-inch diagonal and the performance while still delivering exceptional battery life. The 73Wh battery unit kept the lights on for the whopping 715 minutes (11 hours and 55 minutes) on our web browsing test and 532 minutes (8 hours and 52 minutes) on our video playback test. This is just a few minutes shy away from the current 15-inch leader, the Dell Inspiron 15 7567.
Still, a 6th place in our battery rankings among other 13-inch and 14-inch notebooks is an amazing result.