Watt draw at a glance
See discharge and charge rates update every second so you immediately notice spikes from browsers, VMs, or rogue background jobs.
Menu bar power monitor
Mac Battery Guru
See real-time discharge, charge, and health data so you can squeeze the maximum runtime out of any MacBook.
- Watts, milliamps, charge or time remaining in the menu bar, your choice.
- See power spikes the second they happen.
- Track battery health, cycles, and temperature over time.
Why Mac owners run Battery Guru
Know the battery’s condition
Monitor cycle count, original vs. current capacity, and temperature to understand how your battery is aging.
Catch spikes early
When the draw jumps you see it immediately, so you can find the culprit in Activity Monitor before the fans spin up.
Use Battery Guru to stay ahead of drain
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1
Install & pin in the menu bar
Launch the app and it lives in the menu bar. Turn on Launch at login in its settings so the reading is always there.
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2
Watch discharge trends
Typical idle draw is a handful of watts. If you see sustained spikes, look for the process in Activity Monitor.
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3
Check health insights
Battery Guru shows cycle count, original capacity, and temperature so you know when it’s time to recalibrate or replace.
Power users’ playbook
Battery usage is never a smooth glide from 100% to 0. The app reveals the spikes you normally miss so you can respond before your battery is toast mid-flight.
- Spot when something is pulling several times the idle draw, then track it down in Activity Monitor.
- See what a video call, a compile or a bright display really costs in watts.
- Monitor charge rate so you know how long it will take to refuel before heading out.
Pair Battery Guru with our deep dive, The new MBP power efficiency is impressive, to understand real-world discharge profiles and how we tuned the app. The historical Battery Guru download statistics are also preserved for reference.
Downloads & uninstall
- Download: BatteryGuru.zip
- Mac App Store: an older release (1.9.1, from 2018) is still listed there; the current version is the download above
- Requirements: macOS 14 (Sonoma) or later · Apple silicon only
- Uninstall: Quit the app, then drag Battery Guru.app from Applications to the Trash.
Need help tuning a workflow?
Share your Mac model, macOS version, and what you’re seeing in Battery Guru. We’ll help you interpret the numbers or track down offending apps.