Stanley V20 to Black and Decker 18V Ni-Cd Battery Adapter

Use your Stanley V20 batteries on Black and Decker 18V Ni-Cd cordless tools, without buying into a second battery platform. Constructed from durable molded ABS with pure copper contacts, for a secure fit and dependable current transfer. Fewer battery systems in the workshop, on the bench or in the van, and no extra chargers to find room for.

Specifications

• Fits this battery Stanley V20 (Lithium-Ion)
• Battery voltage 20V
• Runs these tools Black and Decker 18V Ni-Cd (Nickel-Cadmium)
• 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 138 g (4.9 oz / 0.3 lb)
• Colour Black, Red
• 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 October 5, 2025)

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.
• Covered by a 12-month warranty from the day it arrives.

Stanley V20 and Black and Decker 18V Ni-Cd compatibility

It works in one direction only: Stanley batteries powering Black and Decker tools. For the opposite pairing, see adapters that run on Black and Decker 18V Ni-Cd batteries.

Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the Stanley V20 platform and that your tool takes Black and Decker 18V Ni-Cd batteries.

Important charging and safety information

This adapter is for powering cordless tools and nothing else. It cannot charge Stanley or Black and Decker 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 Stanley V20 battery.

Before you buy