Finally got battery monitoring working reliably. This was a hell of a lot harder than it should have been.

usr/lib/systemd/system/battery-monitor.service

@@ -1,32 +1,27 @@
 [Unit]
 Description=Battery Monitor for Stormux Gaming Image
 Documentation=man:battery_monitor.py(1)
-After=multi-user.target
+After=multi-user.target sound.target
 ConditionPathExists=/sys/class/power_supply
 
 [Service]
 Type=simple
 ExecStart=/usr/local/bin/battery_monitor.py
 Restart=always
-RestartSec=10
-User=root
-Group=root
+RestartSec=30
+User=stormux
+Group=stormux
 
-# Security settings
-NoNewPrivileges=yes
-ProtectSystem=strict
-ProtectHome=yes
-ProtectKernelTunables=yes
-ProtectKernelModules=yes
-ProtectControlGroups=yes
-ReadWritePaths=/var/log
-ReadOnlyPaths=/sys/class/power_supply
+# Allow access to system resources
+SupplementaryGroups=audio video
 
-# Allow access to speech and audio
-SupplementaryGroups=audio
-
-# Environment
+# Environment for audio and speech
 Environment=PYTHONUNBUFFERED=1
+Environment=XDG_RUNTIME_DIR=/run/user/1000
+Environment=PULSE_RUNTIME_PATH=/run/user/1000/pulse
+
+# Allow sudo for shutdown without password
+# This requires sudoers configuration
 
 [Install]
-WantedBy=multi-user.target
+WantedBy=default.target