Ultimate Guide to Milwaukee M12 & M18 Compatibility
The Milwaukee M12 & M18 batteries are known to provide more power, runtime, and speed than your average lithium-ion Battery. With an extensive line of cordless tools, it can be hard to determine which Battery is compatible with each tool. Let’s break it down:
M12 & M18 Batteries Explained
The difference between an M12 and an M18 battery comes down to size, weight, and comparability. We previously posted an in-depth explanation, check out Milwaukee M12 and M18 Batteries to learn more.
Which Battery Pack Do I Need?
CP Batteries
The lightweight Milwaukee CP batteries, or compact batteries, have 5 Li-ion cells. They are available for M12 and M18 tools. The Battery offers a faster charge time and is designed for jobs that require a light demand and repetitive tasks. Screw Guns, Cable Cutters, and Drain Snakes are a few tools that fit into this category. See the reference chart below for more details.
XC Batteries
Milwaukee XC batteries, or extended capacity batteries, have 10 Li-ion cells. They are also available for M12 and M18 tools. This pack is designed for more runtime and power to create high performance for all demands. Hammer Drills, Jig Saws, and Underhood Lights are a few tools that fit into this category. See the reference chart below for more details.
HD Batteries
The Milwaukee HD battery, or High Demand battery, has 15 Li-ion cells. These packs are exclusive to the M18 tool line. The HD battery provides the best performance for high demand applications. Rotary Hammers, Right Angle Drills, and String Trimmers are a few tools that fit into this category. See the reference chart below for more details.
M12 & M18 Battery Chart
Now that you’re familiar with the difference, are you ready to find the Milwaukee Tools for the job? You’ll find the right tool and the right deal at Acme Tools.
Battery Reference Chart
Refer to the table below for battery compatibility.
| PART NUMBER | DESCRIPTION | BATTERY TYPE |
| 48-11-2401 | M12™ REDLITHIUM CP 1.5Ah BATTERY PACK | CP |
| 48-11-2411 | M12™ REDLITHIUM CP 1.5Ah BATTERY 2-PACK | CP |
| 48-59-2420 | M12™ CP 2.0Ah STARTER KIT | CP |
| 48-11-2402 | M12™ XC 2.0Ah BATTERY PACK | CP |
| 48-11-2420 | M12™ REDLITHIUM CP 2.0Ah BATTERY | CP |
| 48-11-2430 | M12™ REDLITHIUM CP 3.0Ah BATTERY PACK | CP |
| 48-11-2412 | M12™ REDLITHIUM XC 3.0Ah BATTERY 2-PACK | XC |
| 48-11-2440 | M12™ REDLITHIUM XC 4.0Ah BATTERY | XC |
| 48-11-2460 | M12™ REDLITHIUM XC 6.0Ah BATTERY PACK | XC |
| 48-11-1820 | M18™ REDLITHIUM CP 2.0Ah BATTERY | CP |
| 48-11-1835 | M18™ REDLITHIUM HIGH OUTPUT CP 3.0Ah Battery | CP |
| 48-59-1850 | M18™ XC 5.0Ah STARTER KIT | XC |
| 48-11-1850 | M18™ REDLITHIUM XC 5.0Ah BATTERY PACK | XC |
| 48-11-1865 | M18™ REDLITHIUM HIGH OUTPUT XC 6.0Ah BATTERY PACK | XC |
| 48-11-1862 | M18™ REDLITHIUM HIGH OUTPUT XC 6.0Ah BATTERY 2-PACK | XC |
| 48-11-1880 | M18™ REDLITHIUM HIGH OUTPUT XC 8.0Ah BATTERY | XC |
| 48-59-1890 | M18™ REDLITHIUM HD 9.0Ah STARTER KIT | HD |
| 48-11-1890 | M18™ REDLITHIUM HD 9.0Ah BATTERY PACK | HD |
| 48-11-1812 | M18™ REDLITHIUM HIGH OUTPUT HD 12.0Ah BATTERY PACK | HD |
| 48-59-1200 | M18™ REDLITHIUM HIGH OUTPUT HD 12.0Ah BATTERY STARTER PACK | HD |
FAQ
Are The Batteries Interchangeable?
No, the batteries are not interchangeable. M12 batteries are compatible with M12 tools only, and M18 batteries are compatible with M18 tools only.
How Long Does it Take to Charge the Battery?
Refer to the chart below for charge times.
Do Milwaukee Batteries Have a Lifetime Warranty?
No, the battery packs do not have a lifetime warranty. However, the battery packs will be replaced or repaired if they are defective in material or workmanship. The warranty date of purchase ranges from 2 to 3 years.
