Ryobi 18V Cigarette Lighter Adapter

I wanted an easy way to get useful power out of my Ryobi batteries without building another power supply. So I put a car cigarette lighter socket in a simple 3D-printed attachment and wired it straight to the battery terminals. That’s the entire circuit. The socket is connected directly to the battery terminals. There is no voltage conversion hiding inside the print. Read the rest on the site ...