Craftsman 20V to Milwaukee 18V Battery Adapter
Use your Craftsman 20V batteries on Milwaukee M18 cordless tools, without buying into a second battery platform. Built with a durable 3D-printed ABS housing and pure copper contacts — light in the hand, accurate on the fit. It keeps one battery platform serving more tools, which costs less than buying into another.
Specifications
- SKU PTA-CRA20-MIL18
- Fits this battery Craftsman 20V (Lithium-Ion)
- Battery voltage 20V
- Runs these tools Milwaukee M18 (Lithium-Ion)
- Tool voltage 18V
- Housing ABS (3D)
- Terminals Copper
- Current rating 40A continuous (80A peak at 18VDC for up to 2 seconds)720 Watt continuous at 18V nominal
- Internal wiring 5 mm²
- Weight 114 g (4.0 oz / 0.25 lb)
- Dimensions (L × W × H) 111 × 74 × 52 mm (4.37 × 2.91 × 2.05 in)
- Colour Black
- Operating humidity 5–95% RH
- Operating temperature -10 °C to 50 °C (14 °F to 122 °F)
- USB port No
- What's in the box Battery Adapter
- Warranty 12 months after the date of delivery
- Revision Revision 01 (released on October 18, 2021)
Why choose this adapter
- Solid copper terminals, so less of the current is lost as heat.
- 5 mm² internal wiring, rated for 40A continuous with 80A peak at 18VDC for up to 2 seconds, so a high-draw tool is not held back by the adapter.
- Covered by a 12-month warranty from the day it arrives.
Craftsman 20V and Milwaukee M18 compatibility
It works in one direction only: Craftsman batteries powering Milwaukee tools. For the opposite pairing, see adapters that run on Milwaukee M18 batteries.
Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the Craftsman 20V platform and that your tool takes Milwaukee M18 batteries.
Important charging and safety information
This adapter is for powering cordless tools and nothing else. It cannot charge Craftsman or Milwaukee batteries and must never be connected to a charger of any kind. Always take the battery out of the adapter before charging, and charge it on the original charger made for your Craftsman 20V battery.