DeWalt 20V to Dremel 12V (8220 8250) Battery Adapter

Use your DeWalt 20V MAX batteries on Dremel 12V 8220/8250 cordless tools, without buying into a second battery platform. Your DeWalt 20V MAX battery is 20V and a Dremel 12V 8220/8250 tool expects 12V. The converter holds the output at the tool’s level for as long as the battery lasts. The molded ABS housing keeps it light and hard-wearing, and pure copper contacts keep current delivery steady. 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-DRE12
• Fits this battery DeWalt 20V MAX (Lithium-Ion)
• Battery voltage 20V
• Runs these tools Dremel 12V 8220/8250 (Lithium-Ion)
• Tool voltage 12V
• Housing ABS (Injected)
• Terminals Copper
• Current rating 40A continuous (80A peak at 18VDC for up to 2 seconds)432 Watt continuous at 10.8V nominal
• Weight 152 g (5.4 oz / 0.34 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 May 2, 2024)

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.
• 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.

DeWalt 20V MAX and Dremel 12V 8220/8250 compatibility

It works in one direction only: DeWalt batteries powering Dremel tools. For the opposite pairing, see adapters that run on Dremel 12V 8220/8250 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 Dremel 12V 8220/8250 batteries.

Important charging and safety information

This adapter is for powering cordless tools and nothing else. It cannot charge DeWalt or Dremel 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.