What's draining my Mac's battery?
Mac Health shows each app's share of the energy used since you unplugged, the power draw right now, and your battery's health and cycle count. Video calls, browsers with many tabs, and builds are the usual causes.
Steps
- Open OneMacTools › Mac Health › Battery. “Since you unplugged” lists each app's share.
- Or ask in ⌘K: “what drained my battery today?”.
- Check “Using the most power now” and Awake & Heat for apps keeping the Mac awake.
Battery health
Health is how much charge the battery holds compared with new. Below 80%, Apple suggests a service. Cycle count shows how many full charges it has had.
Do it with OneMacTools
Questions
Why does my Mac's battery drain while asleep?
Usually an app keeping it awake, or Power Nap. Mac Health's Awake & Heat tab lists apps holding sleep off.
