Comment by bondolo

I have similar issues over the years on various devices and it has always been frustrating to determine the cause. Power management in general is so inscrutable. I wish there was a tool which let me go back through recent history, even just since the last 100% charge, and tell me why my machine was not sleeping or idling and what was consuming power. Apple has added some energy tools over the years but has never offered tools to explain system behaviour.