Yeah double the PPW does not mean double the battery, because unless you're pegging the CPU/SOC it's likely only a small fraction of the power consumption of a light-use or idle device, especially for an SOC which originates in mobile devices.
Doing basic web navigation with some music in the background, my old M1 Pro has short bursts at ~5W (for the entire SoC) when navigating around, a pair of watts for mild webapps (e.g. checking various channels in discord), and typing into this here textbox it's sitting happy at under half a watt, with the P-cores essentially sitting idle and the E cores at under 50% utilisation.
With a 100Wh battery that would be a "potential" of 150 hours or so. Except nobody would ever sell it for that, because between the display and radios the laptop's actually pulling 10~11W.
On my M1 air, I find for casual use of about an hour or so a day, I can literally go close to a couple weeks without needing to recharge. Which to me is pretty awesome. Mostly use my personal desktop when not on my work laptop (docked m3 pro).
Doing basic web navigation with some music in the background, my old M1 Pro has short bursts at ~5W (for the entire SoC) when navigating around, a pair of watts for mild webapps (e.g. checking various channels in discord), and typing into this here textbox it's sitting happy at under half a watt, with the P-cores essentially sitting idle and the E cores at under 50% utilisation.
With a 100Wh battery that would be a "potential" of 150 hours or so. Except nobody would ever sell it for that, because between the display and radios the laptop's actually pulling 10~11W.