There’s no question about it: The past year has redefined what’s possible when it comes to battery life in laptops. Thanks to new processor technology, we’re seeing devices lasting upwards of 15 hours as the new norm, when just a few years ago that would have been considered exceptional. We put all the laptops we test through the wringer, and the ones chosen for this list emerged as some of the best in class for not just their battery life, but how well that battery complements other features. The numbers cited here reflect the standard test: starting at 100% battery, putting on a live stream over Wi-Fi, setting brightness to 50%, and letting it run. We also use a “neutral” profile, disabling any battery-saving performance states. With that in mind, these numbers could go higher or lower, depending on which performance modes you have active, and what you’re doing. The test we perform makes the laptop work pretty hard; keep in mind that average battery life will likely be higher for you with everyday use cases like web browsing, multitasking, and typical use of productivity apps. Also: The best laptops: Expert testedWhat’s the best battery life laptop right now?Our tested pick for the best laptop for battery life overall is the Microsoft Surface Laptop More