Black and Decker 20V to Masterforce 20V Battery Adapter

Use your Black and Decker 20V batteries on Masterforce 20V cordless tools, without buying into a second battery platform. Power passes straight through: Black and Decker 20V and Masterforce 20V share the same 20V rating. Built with an injection-molded ABS battery interface, a 3D-printed ABS tool socket for a close fit, and pure copper contacts. This helps you get the most out of your existing battery system while avoiding the cost of another set of batteries and chargers.

Specifications

• SKU PTA-BLA20-MAS20
• Fits this battery Black and Decker 20V (Lithium-Ion)
• Battery voltage 20V
• Runs these tools Masterforce 20V (Lithium-Ion) from Menards
• Tool voltage 20V
• Housing ABS
• 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 129 g (4.6 oz / 0.28 lb)
• Colour Red, 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 June 19, 2025)

Why choose this adapter

• Your Black and Decker 20V battery and Masterforce 20V tools run at the same voltage, so the adapter changes the fitting rather than converting anything.
• 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.
• Covered by a 12-month warranty from the day it arrives.

Black and Decker 20V and Masterforce 20V compatibility

It works in one direction only: Black and Decker batteries powering Masterforce tools. For the opposite pairing, see adapters that run on Masterforce 20V batteries.

Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the Black and Decker 20V platform and that your tool takes Masterforce 20V batteries.

Important charging and safety information

This adapter is for powering cordless tools and nothing else. It cannot charge Black and Decker or Masterforce 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 Black and Decker 20V battery.