Omahub
← All plugins
L

Lenovo Battery Conservation

by Leonardo Marinovic

On Lenovo laptops enable and disable battery conservation mode which limits battery charging to 60% so it prolongs battery life if it's connected to ac power all the time.

GitHub

Security review

Potentially dangerous behavior detected · 1 finding

Deterministic scan — not a security guarantee

High
Risk level
High
Analyzed commit
d52c2fe
Scanned
1 month ago
  • high destructive_filesystem teardown.sh:12

    Destructive operation on the root filesystem or a block device.

    rm -rf /usr/local/lib/omarchy-lenovo-conservation-mode

Automated analysis only — not a security guarantee.

AI advisory review

No obvious issues detected

Language-model assessment · ~deepseek/deepseek-v4-flash-latest — advisory only

Low
AI risk level
Low
Recommendation
install
Model
~deepseek/deepseek-v4-flash-latest
Analyzed commit
d52c2fe
Reviewed
1 month ago

The plugin is a legitimate battery conservation toggle for Lenovo laptops. The flagged `rm -rf` in teardown.sh is scoped to the plugin's own installation directory and is a safe cleanup operation, not a destructive system-wide command. The privileged setup installs a narrowly-scoped sudoers rule and a root-owned helper that only writes 0 or 1 to a specific sysfs attribute, with proper validation via visudo.

  • The plugin requires a one-time sudo setup that installs a sudoers rule allowing wheel group members to run the helper without a password. This is a common pattern for hardware toggles and is narrowly scoped, but it does grant a persistent privilege escalation path if the helper were ever compromised.
  • The teardown.sh uses `rm -rf` on /usr/local/lib/omarchy-lenovo-conservation-mode, which is safe but could be mistaken for a destructive operation by automated scanners.
How this check works

This review combines the deterministic scan (the rule-based results above) with an independent look at the plugin's code by a language model. The model reads a trimmed sample of the repository's files, the manifest, and the README, then gives a plain-language risk level and a recommendation: install (no notable danger), review (look closer first), or avoid (clearly dangerous).

It runs on the same analyzed commit as the deterministic scan and is strictly advisory — it is not a security guarantee and never blocks a plugin by itself. A human moderator still reviews plugins before they are listed.

AI advisory only — automated analysis, not a security guarantee.

Install
$ omarchy plugin add https://github.com/LeonardoM011/omarchy-lenovo-battery-conservation --enable
Hardware #power-management

Lenovo Battery Conservation — Omarchy Power Panel

Adds a Battery Conservation toggle to Omarchy's built-in Power panel (the panel that opens when you click the battery icon in the bar), right below POWER PROFILE. It controls Lenovo IdeaPad's firmware-level conservation mode, which stops charging around 55-60% instead of 100% to slow long-term battery wear — the same feature Lenovo Vantage exposes on Windows.

This talks directly to the ideapad_acpi kernel driver's conservation_mode sysfs attribute. No daemon, no third-party tool.

Battery Conservation toggle in the Power panel

How this is built

Claude code was heavily used in making of this plugin

Omarchy doesn't support arbitrary "patch a built-in plugin" files — instead you clone the built-in omarchy.power panel into your own config (which replaces the built-in one 1:1, keeping the same bar position and IPC target) and edit the clone. That's what this repo is: a clone of the built-in Power panel (Panel.qml + Model.js, untouched) with:

  • A Battery Conservation section added to Panel.qml, right after the power-profile buttons — a Toggle row wired to real hardware state.
  • conservation.sh — unprivileged status/control script the panel shells out to (reading conservation_mode needs no privilege; writing it does).
  • conservation-write.sh + setup.sh / teardown.sh — the privileged write path (see Privileged setup below).

Diff-wise, everything outside the "Battery conservation" comment blocks in Panel.qml is stock Omarchy.

Installation on a new machine

This repo is the plugin (a full clone of the built-in omarchy.power panel, edited in place — see How this is built below), so install it directly from git — no manual clone-and-copy of the built-in panel needed:

omarchy plugin add https://github.com/LeonardoM011/omarchy-lenovo-battery-conservation.git --enable

This clones the repo straight into ~/.config/omarchy/plugins/leonardom011.lenovo-battery-conservation/, registers it (replacing the built-in Power panel 1:1, same bar position and IPC target), and enables it. Because it's a real git checkout, later updates are just:

omarchy plugin update leonardom011.lenovo-battery-conservation

If you're iterating locally on this repo instead, point at your working copy's path instead of the GitHub URL — omarchy plugin add /path/to/this/repo --enable — and omarchy plugin update will pull from there.

Privileged setup (required to actually toggle)

conservation_mode is a root:root, mode 0644 sysfs attribute — readable by anyone, writable only by root. Run setup.sh once with sudo:

cd ~/.config/omarchy/plugins/leonardom011.lenovo-battery-conservation
sudo ./setup.sh

This installs exactly two things:

  • /usr/local/lib/omarchy-lenovo-conservation-mode/conservation-write.sh — a root-owned script whose only job is printf '%s' "$1" > conservation_mode, and which refuses any argument other than the literal 0 or 1.
  • /etc/sudoers.d/omarchy-lenovo-conservation-mode — a rule letting members of the wheel group run only that exact helper with only those two exact arguments, without a password (NOPASSWD).

Nothing else gains any new privilege, and reading the current state never needs root. Until this is run, the toggle in the panel will show the real state but flip attempts will fail with a notification pointing back here.

To remove it later: sudo ./teardown.sh (from a copy of this repo, since the plugin folder itself has no privileged contents to remove).

Usage & IPC

  • Panel: Click the battery icon in the bar to open the Power panel, then click the Conservation Mode row.
  • CLI / Keybinding: 
    omarchy-shell omarchy.power toggleConservation
omarchy-shell omarchy.power conservationStatus
    or use the bundled wrapper: ./toggle.sh [toggleConservation|conservationStatus].

Optional keybinding

Add to ~/.config/hypr/bindings.lua:

-- Toggle Battery Conservation Mode
o.bind("SUPER + SHIFT + B", "Toggle Battery Conservation", "omarchy-shell omarchy.power toggleConservation")

Removal

omarchy plugin remove leonardom011.lenovo-battery-conservation --yes   # restores the stock built-in Power panel
sudo ./teardown.sh                        # from a copy of this repo, undoes the privileged setup

Requirements

  • A Lenovo IdeaPad with the ideapad_acpi kernel driver loaded (lsmod | grep ideapad_laptop).
  • sudo.

License

MIT — see LICENSE.