Einhell PXC 18V to DeWalt 20V Battery Adapter

Use your Einhell 18V PXC batteries on DeWalt 20V MAX cordless tools, without buying into a second battery platform. 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-EIN18-DWM20
• Fits this battery Einhell 18V PXC (Lithium-Ion)
• 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 102 g (3.6 oz / 0.22 lb)
• Dimensions (L × W × H) How It's Measured 110 × 70.5 × 45 mm (4.33 × 2.78 × 1.77 in)
• 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 August 8, 2026)

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.

Einhell 18V PXC and DeWalt 20V MAX compatibility

It works in one direction only: Einhell 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 Einhell 18V PXC 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 Einhell 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 Einhell 18V PXC battery.

Before you buy