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:
https://makerworld.com/en/u/3687936443
| Battery_Plate.3mf | 79.4KB | |
| Battery_Plate.stl | 193.1KB | |
| Case_Cover.3mf | 101.4KB | |
| Case_Cover.stl | 296.4KB | |
| Makita_12V_Power_Adapter_Build_Guide.pdf | 2.5MB | |
| Temperature_Controlled_Fan_1.1.pdf | 975.8KB |
