Native macOS utility

See your Mac’s
power, live.

Charge Monitor turns live computer and battery power into one clear menu-bar view—with a private rolling 15-minute history.

  • No accounts
  • No analytics
  • No network access
Adapter 67 W rated
Charge Monitor menu-bar popover showing adapter, computer, battery-charging power, and a 15-minute chart
Illustrative readings shown. Sensor availability varies by Mac model.
Into battery 31.7 W

Truthful by design

A wattage reading
you can understand.

Charge Monitor labels what your Mac actually reports. It never presents an adapter’s maximum rating as live usage, and unavailable measurements stay unavailable.

01

Computer power

Live system use, excluding power flowing into the battery when supported.

02

Charging power

Power currently flowing into a MacBook battery while it charges.

03

Power history

A rolling 15-minute chart held in memory and cleared when the app quits.

Context, not clutter

Watch power change over time.

Open a focused history window when you want the wider view. Everything remains on your Mac.

Charge Monitor power history window showing a rolling 15-minute charging-power chart

Support

Answers when
you need them.

For help, feedback, or feature requests, email hello@thebes.dev.

Contact support

Please include your Mac model, macOS version, and Charge Monitor version. The app never sends these automatically.

Where does Charge Monitor live?

Charge Monitor is a menu-bar app. After opening it, look for its power icon and wattage near the right side of the macOS menu bar. Select the item to open the main view.

Why is a reading unavailable?

Power sensors differ across Mac models and operating conditions. Charge Monitor only shows measurements your Mac exposes or values it can derive transparently. Unsupported live measurements are marked unavailable rather than estimated.

What does “rated” adapter power mean?

The rated value is the adapter’s maximum advertised capacity—not its present output. Live computer and charging measurements are labeled separately.

How long is history kept?

The chart keeps a rolling 15-minute window in memory. It is not uploaded or written as a history file, and it is discarded when Charge Monitor quits.

How do I change the menu-bar reading?

Open Charge Monitor, choose Settings, then select what the menu bar should show while plugged in and—on a MacBook—while on battery. You can also change the refresh interval and launch-at-login behavior there.

What are the system requirements?

Charge Monitor requires macOS 14 or later. The exact live measurements available depend on the sensors exposed by your Mac.

On-device means on-device

Your readings go nowhere.

Charge Monitor has no accounts, analytics, advertising, tracking, or network functionality. App readings remain on your Mac.