---

echo "=== SYSFS ===" && cat /sys/class/power_supply/BAT*/uevent 2>/dev/null && echo -e "\n=== UPOWER ===" && upower -i $(upower -e | grep -m1 'BAT') 2>/dev/null && echo -e "\n=== DMESG ===" && sudo dmesg | grep -Ei "battery|acpi.*bat" | tail -n 15