DC 12V Power Adapter for Makita LxT Batteries

Here is a project to build a 12V power adapter, powered by Makita LxT 18V batteries.

All the components and modules fit into a 3D printed case.  The 3D printed case consists of two parts, a battery plate and a case cover.  The case is secured to the battery plate by four 3.5 x 15mm countersunk self-tapping screws.

Features

• 12V 5A continuous
• Undervoltage battery protection.
• Current limiting above 6A.
• Continuous digital display of voltage, current and wattage.
• Progressive fan cooling as unit warms up.
• Power efficiency: ~93%
• Quiescent operating current: ~30mA
• 12V banana sockets power delivery.
• Utilises commonly available Makita 18V LxT batteries.

My print is made in Bambu Lab PLA Tough Gray filament, with 0.2mm layer height and 25% infill on a Bambu Lab X1 Carbon printer.  Print supports are required.

I hope that you can find this print useful, too.

Remember to leave me some feedback or even a tip to keep me enthused to make more of these drawings.

For my latest models, see my main uploads site at MakerWorld as “Wiseone”.