Milwaukee M12 3-Slot Battery Holder

This holder is designed to store three batteries on a wall, cabinet, tool board, or shop panel. The spacing is sized to work with the larger flat-base battery packs, while still holding the smaller compact packs.

I have test-fit this with a wide variety of M12 batteries, including newer high-output style packs. Fit varies a little by battery: some packs are slightly tighter and some are slightly looser, but I have not found any that were too tight to insert or loose enough that I would be worried about them falling out in normal wall-mounted use.

Features

• Holds 3 batteries
• Spaced for larger flat-base packs
• Also works with smaller compact stem-style packs
• Wall-mountable design
• Two clearance holes for #6 flat-head screws
• 90-degree countersinks
• Prints without supports
• Designed with short bridge sections between the battery pockets

Battery fit notes

This version is the wider-spaced 3-slot version. It is intended for both compact batteries and larger flat-base batteries.

The smaller compact batteries are the narrow stem-style packs, typically the packs with the smaller center section. The larger packs are the flat-base style batteries with the wider lower body.

I also have a 4-slot version available, but that version is only intended for the smaller compact batteries.

Mounting notes

Mount with two #6 flat-head screws. I mounted mine in vertical rows with about 5 inches from the top of one holder to the top of the next holder. That is not 5 inches of open space between parts; it is approximately 5 inches top-to-top. Adjust spacing based on your batteries and how much hand clearance you want.

Print notes

• No supports required
• Some bridging occurs between the three battery sections
• Print in the orientation provided
• PLA, PETG, or similar rigid materials should work for normal indoor shop storage