---
name: "systemd-ac-power"
section: "1"
platform: "linux"
package: "systemd"
version: "262.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/systemd-ac-power"
---

# systemd-ac-power(1)

Report whether we are connected to an external power source

## NAME

systemd-ac-power - Report whether we are connected to an external power source

## SYNOPSIS

**systemd-ac-power** \[OPTIONS...\]

## DESCRIPTION

**systemd-ac-power** may be used to check whether the system is running on AC power or not. By default, it will simply return success (if we can detect that we are running on AC power) or failure, with no output. This can be useful for example to debug *ConditionACPower=* (see [**systemd.unit**(5)](/systemd.unit/5.md)).

## OPTIONS

The following options are understood:

- **-v**, **--verbose**

  Show result as text instead of just returning success or failure.

  Added in version 253.

- **--low**

  Instead of showing AC power state, show low battery state. In this case, will return zero if all batteries are currently discharging and below 5% of maximum charge. Returns non-zero otherwise.

  Added in version 254.

- **-h**, **--help**

  Print a short help text and exit.

- **--version**

  Print a short version string and exit.

## EXIT STATUS

On success (running on AC power), 0 is returned, a non-zero failure code otherwise.

## SEE ALSO

[**systemd**(1)](/systemd/1.md)