RIDGID 18V to DeWalt 20V Battery Adapter
This adapter lets you power DeWalt 20V MAX cordless tools with the RIDGID 18V batteries you already own. The molded ABS housing keeps it light and hard-wearing, and pure copper contacts keep current delivery steady. It removes the need to keep separate batteries for different platforms, which saves money and simplifies the workflow.
Specifications
- SKU PTA-RID18-DWM20
- Fits this battery RIDGID 18V (Lithium-Ion) from Home Depot
- Battery voltage 18V
- Runs these tools DeWalt 20V MAX (Lithium-Ion)
- Tool voltage 20V
- Housing ABS (Injected)
- 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 116 g (4.1 oz / 0.26 lb)
- 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 10, 2021)
Why choose this adapter
- Injection-moulded ABS, not 3D printed — no layer lines to split under load.
- 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.
- Made for the RIDGID 18V batteries sold at Home Depot, so the fit is the one you already own.
- Covered by a 12-month warranty from the day it arrives.
RIDGID 18V and DeWalt 20V MAX compatibility
It works in one direction only: RIDGID batteries powering DeWalt tools. For the opposite pairing, see adapters that run on DeWalt 20V MAX batteries.
Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the RIDGID 18V platform and that your tool takes DeWalt 20V MAX batteries.
Important charging and safety information
This adapter is for powering cordless tools and nothing else. It cannot charge RIDGID or DeWalt 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 RIDGID 18V battery.
Before you buy
RIDGID 18V batteries
- Not compatible with RIDGID Red 18V (plumbing) batteries / tools
DeWalt 20V MAX tools
- DCV581H Wet-Dry Vacuum: Not compatible