Today, Windows released a new "experiment" on its blog to promote its own built-in browser that may users may be hesitant to fully switch to (me included). It's important for Microsoft to up its own browser game, especially since it's already installed on every Windows 10 machine in the world. The experiment in the video was quite simple but perhaps not realistic or valid in all situations. Four identical laptops were placed side by side and all were left streaming a video. Once the test started, all four laptops were unplugged and the video kept streaming. Then the time it takes...
Source: http://www.gsmarena.com/microsoft_boasts_about_battery_life_on_edge_browser_vs_other_top_browsers-news-18928.php