macOS 11 Big Sur brings back startup chime, battery life time remaining estimates - 9to5Mac
MacRumors.com on Twitter: "#Apple made the battery icon in #macOS Big Sur Beta 3 less awful. See if you can spot the difference. https://t.co/6sWuputNhy" / Twitter
Get help with your Mac notebook battery - Apple Support
How To Check Battery Cycle Count On Mac? – Setapp
How to See Battery Time Remaining on MacOS Mojave, High Sierra, & Sierra | OSXDaily