Use the new helper

install/first-run/battery-monitor.sh

@@ -1,10 +1,8 @@
-if ls /sys/class/power_supply/BAT* &>/dev/null; then
-  # This computer runs on a battery
+if omarchy-battery-present; then
   powerprofilesctl set balanced || true
 
   # Enable battery monitoring timer for low battery notifications
   systemctl --user enable --now omarchy-battery-monitor.timer
 else
-  # This computer runs on power outlet
   powerprofilesctl set performance || true
 fi