Battery Adapter 2x2 AA in series

thingiverse

We own the Simplehuman brand automatic soap dispenser, which we use for dish soap in our kitchen. It operates flawlessly and looks great on a custom-built platform made from 3D printed materials that keeps it level on the sink and serves as a plug when changing faucets. The only drawback is that this device quickly drains batteries, causing them to run out just as the tank reaches capacity - an issue exacerbated by the non-removable tank design, which forces you to stand on your head to replace the batteries while dealing with dirty dishes piled up in the sink. That's why I decided to create a power adapter for this device; it should work equally well for any product that relies on four AA batteries arranged in two columns connected in series. Print Settings: Printer: XYZ Pro Rafts: Doesn't matter Supports: Yes Resolution: Quick and dirty (.3) Infill: 15% Notes: Any resolution will suffice, so I opted for fast PLA settings since aesthetics weren't a priority; my main goal was function. Post-Printing Instructions: To assemble... After printing, I used copper wire to create loops across both positive and negative terminals. By twisting them together, I formed small soldering points at the ends of each loop, which I then filled with silicone (painted white for visibility) to secure everything firmly in place while leaving exposed solder loops visible. Next, I utilized a 5V, .6A power supply leftover from another project - this voltage works perfectly for this device - and connected it properly via soldering the copper wire.