Laptop Battery

Battery Health

Noctalia uses Quickshell and UPower to monitor your battery health. Depending on your hardware, battery health information may appear in the battery panel.

Battery Charge Threshold

Previous versions of Noctalia included a battery manager that allowed setting charging thresholds. This functionality was removed in v3 due to compatibility issues across different distributions and hardware.

If you need charge threshold management, we recommend installing TLP, which is widely supported and easy to configure. If you install TLP you most likely want to uninstall Power-profiles-daemon.

Resetting Old Thresholds

If you used the old battery manager and need to reset thresholds to their default values (0 and 100%), use the following script:

#!/bin/bash

# Script to reset battery charge thresholds to default values
# This script resets charge_start and charge_stop thresholds to allow full charging

set -e

# Check if running as root
if [ "$EUID" -ne 0 ]; then
    echo "Error: This script must be run as root (use sudo)"
    exit 1
fi

echo "Resetting battery charge thresholds to default..."
echo ""

# Track if any changes were made
changes_made=false

# Find and reset charge_start_threshold (typically set to 0)
for threshold in /sys/class/power_supply/BAT*/charge_control_start_threshold \
                 /sys/class/power_supply/BAT*/charge_start_threshold; do
    if [ -f "$threshold" ] && [ -w "$threshold" ]; then
        echo "Found: $threshold"
        current_value=$(cat "$threshold")
        echo "  Current value: $current_value"
        echo 0 > "$threshold"
        echo "  Reset to: 0"
        changes_made=true
    fi
done

# Find and reset charge_end_threshold (typically set to 100)
for threshold in /sys/class/power_supply/BAT*/charge_control_end_threshold \
                 /sys/class/power_supply/BAT*/charge_stop_threshold \
                 /sys/class/power_supply/BAT*/charge_end_threshold; do
    if [ -f "$threshold" ] && [ -w "$threshold" ]; then
        echo "Found: $threshold"
        current_value=$(cat "$threshold")
        echo "  Current value: $current_value"
        echo 100 > "$threshold"
        echo "  Reset to: 100"
        changes_made=true
    fi
done

# Check for Huawei laptops (different format)
if [ -f "/sys/devices/platform/huawei-wmi/charge_control_thresholds" ]; then
    threshold="/sys/devices/platform/huawei-wmi/charge_control_thresholds"
    echo "Found: $threshold"
    current_value=$(cat "$threshold")
    echo "  Current value: $current_value"
    echo "0 100" > "$threshold"
    echo "  Reset to: 0 100"
    changes_made=true
fi

echo ""
if [ "$changes_made" = true ]; then
    echo "✓ Battery charge thresholds have been reset to default."
    echo "  Your battery will now charge to 100%."
else
    echo "No battery charge threshold files found or accessible."
    echo "This could mean:"
    echo "  - Your system doesn't support charge thresholds"
    echo "  - The thresholds are already at default values"
    echo "  - Your laptop uses a different threshold mechanism"
fi

echo ""
echo "Done!"