Got my M1 powered MacBook Pro 13" today. Haven't plugged it in since taking it out of the box - has gone from 88% to 39% battery in about four hours of "DO ALL THE THINGS SETUP SYNC BACKUP". The i7 sitting next to it hasn't charged from ~20% to 100% in that time...
— James Hodgkinson (@yaleman43381258) December 1, 2020