The design also features a lithium-ion battery protection circuit of ’s own design, to make up for the fact that DeWalt don’t integrate them into their battery packs. This allows him to use the rig with a wide variety of common soldering iron handpieces, like his favored Hakko FX-951. Armed with this tool, included it as part of a simple compact portable soldering iron design that relies on the off-the-shelf T12-952 controller board. It’s a little piece of plastic with spade terminals inserted to act as the contacts.

The build relies on a simple 3D-printed adapter to suck power from a DeWalt drill battery. Thus, he set about to build such a rig himself. noticed that Ryobi was using them to power soldering irons, but no such tool existed in the DeWalt range. Power tool batteries are a convenient portable power supply for all manner of different things.