Great! It'd be superb to confirm the laptop ACPI emits discharge events every once in a while, or when a threshold level is reached. Then you can write really n

Great! It'd be superb to confirm the laptop ACPI emits discharge events every once in a while, or when a threshold level is reached. Then you can write really neat udev rules. Plug n unplug events are more common. Battery ones are quite infrequent.