powertop is just relaying whatever value my laptop's battery is reporting for current+voltage, read from sysfs[0]. Are you suggesting my laptop's battery is mer

powertop is just relaying whatever value my laptop's battery is reporting for current+voltage, read from sysfs[0]. Are you suggesting my laptop's battery is merely estimating current and/or voltage? I don't know much about the hardware in my laptop's battery, and I'm not succeeding in finding information online, but I'm going to need a source to believe that considering how trivial it would be for the battery to report real values for current and voltage. Regardless, your point about AC/DC conversion losses is good considering the article almost certainly was measuring from AC seeing as how it doesn't have a battery. [0] https://github.com/fenrus75/powertop/blob/master/src/measurement/sysfs.cpp https://github.com/fenrus75/powertop/blob/master/src/measure...