Bosch (Green) 18V to DeWalt 20V Battery Adapter

Use your Bosch 18V PBA (Green) batteries on DeWalt 20V MAX 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. 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-BOSG18-DWM20
• Fits this battery Bosch 18V PBA (Green) (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 104 g (3.7 oz / 0.23 lb)
• Dimensions (L × W × H) How It's Measured 110 × 68 × 60 mm (4.33 × 2.68 × 2.36 in)
• 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 June 23, 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.
• Covered by a 12-month warranty from the day it arrives.

Bosch 18V PBA (Green) and DeWalt 20V MAX compatibility

It works in one direction only: Bosch 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 Bosch 18V PBA (Green) 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 Bosch 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 Bosch 18V PBA (Green) battery.

Before you buy