Two Milwaukee packs can both say CP2.0 and still fit different tools. One pack in the examples below belongs to M12 and the other to M18. If the label on a worn-out pack is hard to read, start with the model on the tool. Then make two checks: which battery the manufacturer specifies for that tool, and which charger the manufacturer lists for that battery.
Read the three labels
Start at the tool’s rating plate and copy its full model number. Include the type or revision when the manufacturer lists one. A bare-tool number can differ from the number on the kit box. Next, read the part number on the battery’s label, along with the platform and amp-hour rating. Finally, look at the label on the charger itself. A station in a shared shop may have arrived with a different tool.
Use those numbers to open the manufacturer’s tool manual or original kit contents. A kit list confirms one supplied combination. A manual can document additional approved options. Retain the link with the shop’s purchase record so whoever orders the next replacement can repeat the check.
Three documented tool, battery and charger combinations
| Tool and platform | Battery pack | Charger | Where to check |
|---|---|---|---|
| Milwaukee M12 installation drill/driver 2505-20 | M12 CP2.0, 48-11-2420 | 48-59-2401 | Milwaukee 2505-22 kit contents |
| Milwaukee M18 FUEL hammer drill/driver 2604-20 | M18 CP2.0, 48-11-1820 | M18 and M12 multi-voltage charger 48-59-1812 | Milwaukee 2604-22CT kit contents |
| DEWALT DCG413 grinder, Type 10 | DCB205, 20V MAX | DCB115 | DEWALT DCG413 Type 10 manual, battery and charger tables |
For a combination you cannot verify, leave a field open on the purchase request: tool and type ____ / pack ____ / charger ____ / missing manufacturer reference ____. Hold the order until the supplier or manufacturer can identify that reference.
The two Milwaukee rows describe the supplied kits. The DEWALT row gives one combination drawn from the manual’s listed packs and chargers. It does not describe the contents of a bare-tool box. For background on DEWALT’s platform names, see the 20V MAX, XR and FLEXVOLT guide.
What the numbers tell a shop buyer
Take a shop with the M18 drill in the second row and an M12 drill at another bench. The 48-59-1812 charger supports both platforms. That capability belongs to the charger. The buyer ordering a spare for the M18 drill still needs an M18 pack approved for that tool. Ordering “another CP2.0” leaves out the information that distinguishes the two packs.
Amp-hours describe charge capacity. They help compare packs within an approved range, but an amp-hour number alone establishes neither physical fit nor tool approval. Also check battery size and weight if the tool needs to fit in a confined area. When comparing electric and cordless tools at NTW, check what each listing includes before counting a battery or charger in the purchase price.
Questions before ordering a replacement
Is matching the voltage enough?
No. Compare the manufacturer, platform, exact tool and pack numbers. Then check the charger. A matching voltage figure alone cannot establish that the contacts, electronics and charging requirements match.
Can I use a third-party adapter to make two brands work together?
An adapter listing describes the seller’s product. For a verified shop combination, look for manufacturer documentation covering the exact tool, pack and charger. If you cannot find it, ask the manufacturer or select a documented combination.
What if the battery label is unreadable?
Use the tool’s model and type number to find the manual, or locate the original kit’s parts list. Have the charger’s number ready too. Those two labels let the manufacturer identify a supported replacement even when the old battery’s part number is gone.