DeWalt 20V to Ryobi 18V Battery Adapter

$34.90

This adapter lets you power Ryobi 18V ONE+ cordless tools with the DeWalt 20V MAX batteries you already own. Built with a durable injection-molded ABS housing and pure copper contacts for steady current delivery. Fewer battery systems in the workshop, on the bench or in the van, and no extra chargers to find room for.

Specifications

SKU PTA-DWM20-RYO18
Fits this battery DeWalt 20V MAX (Lithium-Ion)
Battery voltage 20V
Runs these tools Ryobi 18V ONE+ (Lithium-Ion)
Tool voltage 18V
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 140 g (4.9 oz / 0.31 lb)
Colour Black
Operating humidity 5–95% RH
Operating temperature -10 °C to 50 °C (14 °F to 122 °F)
USB port Yes
What's in the box Battery Adapter
Warranty 12 months after the date of delivery
Revision Revision 01 (released on October 9, 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.
A USB port on the adapter, so the same battery charges a phone on site.
Covered by a 12-month warranty from the day it arrives.

DeWalt 20V MAX and Ryobi 18V ONE+ compatibility

It works in one direction only: DeWalt batteries powering Ryobi tools. For the opposite pairing, see adapters that run on Ryobi 18V ONE+ batteries.

Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the DeWalt 20V MAX platform and that your tool takes Ryobi 18V ONE+ batteries.

Important charging and safety information

This adapter is for powering cordless tools and nothing else. It cannot charge DeWalt or Ryobi 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 DeWalt 20V MAX battery.