Blog
Notes on MacBook batteries: what is known, what is not, and how Dotwatt works.
Should you limit your MacBook's charge to 80%?
What is known about holding a MacBook battery at 80%, what nobody has measured, and when the limit is worth switching on.
How to find the apps draining your MacBook battery
Three ways to see which apps use the most energy on a Mac, from Activity Monitor to the terminal, and what the numbers do not tell you.
Four MacBook battery habits with no evidence behind them
Calibration cycles, running the battery flat, avoiding fast chargers and worrying about Service Recommended, checked against Apple's documentation and published research.