Voltage badges are not enough — rail geometry and BMS lock packs to one brand platform.
| Platform | Example pack | Hard stop |
|---|---|---|
| Milwaukee M18 | 48-11-1850 | ≠ M12 |
| Milwaukee M12 | M12 5.0 | ≠ M18 |
| DeWalt 20V MAX | DCB205 | ≠ Milwaukee / Makita rails |
| Makita 18V LXT | BL1850B | LXT ≠ CXT |
| Ryobi ONE+ | P108 | ≠ 40V |
Cross-brand “adapters” and no-name packs are outside SkuFit’s OEM-fit promise — confirm the tool rail stamp.