Mashup of the 2 source files allowing a Ryobi battery to connect to a 12V automotive accessory port. Used this to power my laptop via car adapter.
Designed (poorly) in Tinkercad. It was a good learning experience.
- DC-DC converter 24V -> 12V (Amazon)
- Generic 12V accessory port
- Battery terminals (Digikey part: 36-204-ND)
- Various wires and screws and a fuse