Lee Supply Ultimate Guide to Milwaukee M12 & M18 Battery Compatibility
02/06/2026
Category : Buying_Guides
With an expansive line of cordless Milwaukee tools available, it can be daunting to figure out which battery is best for your tools.
Which Milwaukee Battery Pack Do I Need?
 |  |  |
CP Batteries | XC Batteries | HD Batteries |
| (Compact) | (Extended Capacity) | (Heavy Duty) |
| Available for M12 & M18 tools | Available for M12 & M18 tools | Available for M18 tools only |
| 5 Li–ion Cells | 10 Li–ion Cells | 15 Li–ion Cells |
| Designed for light demand jobs. Offers a faster charge time ranging from 42 – 65 minutes with a standard charger. View Charging Chart. | Designed for lunger runtimes and greater power for all levels of demand. | Designed to provide for the highest demand jobs. |
| Example compatible products: Screw Guns, Cable Cutters and Drain Snakes. | Example compatible products: Hammer Drills and Jig Saws. | Example compatible products: Impact Drivers, Right Angle Drills, Pole Saws and Trimmers. |
Milwaukee M12 Battery Compatibility
If you are asking which Milwaukee M12 battery is compatible with my M12 cordless tool, you are in luck because ALL M12 batteries are compatible with ANY M12 tool. You can also use any M12 battery with your Milwaukee M12 Fuel tools. View the reference chart below to determine which M12 battery would be best for your Milwaukee M12 power tool.
Milwaukee M18 Battery Compatibility
Again, Milwaukee is making this super simple by making ALL M18 batteries compatible with ANY M18 cordless tool. You can also use any M18 battery with your Milwaukee M18 Fuel tools. View the reference chart below to determine which M18 battery would be best for your Milwaukee M18 power tool.
