Einhell PXC 18V to Milwaukee 18V Battery Adapter

Use your Einhell 18V PXC batteries on Milwaukee M18 cordless tools, without buying into a second battery platform. Both run at 18V, so the adapter changes the fitting and not the voltage. Constructed from durable molded ABS with pure copper contacts, for a secure fit and dependable current transfer. It keeps one battery platform serving more tools, which costs less than buying into another.

Specifications

• SKU PTA-EIN18-MIL18
• Fits this battery Einhell 18V PXC (Lithium-Ion)
• Battery voltage 18V
• Runs these tools Milwaukee M18 (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 114 g (4.0 oz / 0.25 lb)
• Dimensions (L × W × H) How It's Measured 111.5 × 70.5 × 50 mm (4.39 × 2.78 × 1.97 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

• Your Einhell 18V PXC battery and Milwaukee M18 tools run at the same voltage, so the adapter changes the fitting rather than converting anything.
• 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 Milwaukee M18 compatibility

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

Before you buy