Wasn't arguing that it's difficult, just that it's needed (and that I'm not expecting it to be done in practice. Because the indicator LED on my laptop doesn't do it either, despite being enterprise grade).
JIRA is "enterprise grade", I wouldn't place too much faith into that term.
Trust me, I was using it semi-sarcastically too. This thing is slower than my old Pentium 4 would be, yet has a fast enough 30% to 3% battery discharge rate that it would make the speed of light itself blush.
The main culprit is that anyone estimating battery life in percentages. It's about voltage and current draw. The battery voltage can be read directly.
About being slow, I suppose it does run windows and its infamous 'defender'
No, I think it's fairly easy to see that a third of the charge suddenly disappearing is a fairly uncommon behavior.
Same for your Windows idea...
> The main culprit is that anyone estimating battery life in percentages.
I thought this was a solved problem, like, decades ago? At least I remember even the first gen MacBooks having accurate battery percentages, and it’s a more vague memory but my PowerBook G4 did too I think.