I think you may have missed the title of this sub . <| sep |> I ' ll fill up there because my company pays for all my gas so it doesn ' t matter the price . <| sep |> These machines get terrible battery life when doing anything demanding . Frankly it is the same thing with my 2015 MBP . The machines and operating system have been optimized to go into low power mode as often as possible to get good battery life . The minute you do anything that keeps the CPUs running good battery life goes out the window . Technically it is pretty straight forward , a 28 watt CPU , actually drawing 28 watts will not last as long as a machine running on a bigger battery . Obviously here there is an issue that power draw is highly variable but the fact remains if the CPUs , GPUs or other elements of the SoC are active you will drain battery power pretty fast . The smaller batteries in these machines are not a friend to people that do more than surfing the net .