Charging fills it up
Plug in the charger. Electricity pushes a chemical change inside the battery. That change is how the battery keeps the energy — like winding up a spring you cannot see.
Lesson 05
The battery holds the energy
Wiggling a cone and catching radio messages both take energy. BoomBrix carries its own energy inside a battery you can refill.
Make a prediction
Energy Transfer Lab
Which will empty the battery faster — quiet music, or loud music?
Playing uses it up
Switch BoomBrix on. The chemistry runs the other way and pushes electricity out along the wires. That electricity runs the Bluetooth chip, the amplifier and the speaker.
Loud music costs more
Big wiggles need more energy than small wiggles. So the louder you play, the faster the battery empties.
Hear it for yourself.
Everything you just learned happens inside BoomBrix, the speaker that snaps onto your builds.