Are the 20 volt batteries interchangeable with Black and decker 20 v? Support February 25, 2021 19:50 Updated These are not interchangeable and we do not recommend it. Related articles Are the 20 v units interchangeable with the older 19.2 model units? Are the 19.2 batteries interchangeable with the 20 v batteries? How do I handle or claim a warranty on my tool? Where can I locate information about warranty on my specific product? Where can I locate a repair center for my product? Comments 0 comments Please sign in to leave a comment.