Dissatisfied with my pianocade’s need for a short 9-volt power connection, I decided to make a Pianocade battery. Held onto each other with magnets, this 9-volt battery blends with the aesthetic design and color of the Pianocade for easy long lasting mobile jamming.
The one red button turns the battery on an off. 6 (4 inside the Pianocade, 2 inside the battery) small neodymium magnets hold the battery onto the back surface. The battery itself last 3 times longer than one 9 volt battery alone.