Battery Info

Menu-bar utility · macOS

Everything your Mac battery
isn’t telling you.

Health, cycle count, temperature, per-cell voltage, and live charging power — the full picture macOS hides, one click away in your menu bar.

↓ Get BatteryInfo See what it shows

Free · Native Swift · Apple Silicon & Intel · macOS 13+

The BatteryInfo panel while charging: 58%, a green battery gauge, health, cycles and temperature tiles, a 30-minute power draw chart reading 41.3 W, and an adapter section.

What it shows

The readout Apple keeps to itself.

battery.health

Battery health

Real full-charge capacity versus the original design — as a percentage, not a guess. Watch the wear happen.

cycle.count

Cycle count

The number macOS buries three menus deep in System Information, kept in plain sight.

temperature

Temperature

Live cell temperature, color-coded so you notice heat before it becomes a problem.

charge.power

Charging power

Exactly how many watts are flowing in, the charge current, and your adapter’s real output.

cell.voltage

Per-cell voltage

Every cell’s voltage, side by side, so an unbalanced pack has nowhere to hide.

power.history

Live power draw

A rolling 30-minute chart of what your Mac is really consuming — one honest line on battery or plugged in — plus time-to-full and time-to-empty.

Light or dark

Right at home either way.

The panel adapts to your system appearance, with a battery gauge that fills to your real charge and turns green the moment you plug in. The layout never moves — plug in or unplug and nothing jumps around under your pointer.

BatteryInfo panel in light mode while charging, showing the power draw chart and adapter details. BatteryInfo panel in dark mode running on battery at 84%, drawing 13.5 W, with the adapter rows dashed out.

Under the hood

Native. Tiny. Honest.

No Electron, no web view, no background CPU hog — just AppKit reading Apple’s own IOKit battery data and refreshing every few seconds.

0Electron
Swift+ AppKit, fully native
IOKitreads the real source
5slive refresh

FAQ

Questions, answered.

Is BatteryInfo free?

Yes. BatteryInfo is completely free to download and use, on both personal and work Macs. There are no accounts, trials, or in-app purchases.

What does BatteryInfo show that macOS doesn’t?

Battery health (real capacity versus the original design), charge cycle count, live temperature, per-cell voltage, real-time charging power and adapter details, and a rolling 30-minute chart of how many watts your Mac is actually drawing — information macOS buries in System Information or doesn’t surface at all.

Does it work on Apple Silicon and Intel Macs?

Yes. BatteryInfo is a native app that runs on both Apple Silicon and Intel Macs and requires macOS 13 (Ventura) or later.

macOS says BatteryInfo “cannot be verified” — how do I open it?

That is Gatekeeper blocking an unsigned download. The easiest fix is the terminal installer, which uses curl so macOS never quarantines the app: run “curl -fsSL https://dl.batteryinfo.app/install.sh | bash”. If you downloaded the .dmg instead, clear the quarantine flag with “xattr -dr com.apple.quarantine ~/Downloads/BatteryInfo.dmg”.

Does BatteryInfo collect any data?

No. The app runs entirely on your Mac, reads battery data locally, and never connects to the internet — no telemetry, tracking, or accounts.

BatteryInfo app icon

Put it in your menu bar.

Free and native. One line installs it and opens it — no Gatekeeper prompt.

curl -fsSL https://dl.batteryinfo.app/install.sh | bash

Installs BatteryInfo to Applications and launches it. Nothing to sign in to.

or

↓ Download the .dmg

Requires macOS 13+. The app is unsigned, so if macOS blocks the .dmg, clear the download flag once:
xattr -dr com.apple.quarantine ~/Downloads/BatteryInfo.dmg