How to Make a Makita Charger Play a Song

Easter eggs not only in games. In tools as well.

It plays a melody when the charging is complete

Please dont abuse your charger like in this video. The Charger play a tune when the battery is full, and to change the tune you need to take out and insert the battery within 5 seconds after the tune played when its full. You dont need to do it as fast as shown here.

Someone has too much time :)

Didn't work, my battery is now on fire

Why.

Instructions unclear. My bēnis is playing a tune.

This did not seem to work for my DC18SD