Battery extension for the educational DSO138 oscilloscope. The housing can be added to the acrylic housing, replacing the right part besides the power jack. It has a mounting for the JYE140 step up converter and a slide switch. Unfortunately, an additional Lipo charger pcb is required to load the Lipo over USB. A smal Lipo from a drone was used, it powers the DSO for about 1h.
A second, larger version is also available in case a bigger battery should be used.
Due to small overhangs, support is not required