Black and Decker Battery Adapters
Black and Decker 20V sits at the affordable end of cordless, which means people usually own a few tools and rarely a spare battery. 34 adapters here.
The common case is one dead battery and a tool that still works. Running it from a platform you already own is almost always cheaper than replacing a battery for a tool you use twice a year.
Pick a tool to run from your Black and Decker 20V battery
Black and Decker 20V questions
Is a Black and Decker 20V battery 20V or 18V?
Both — it is one battery described two ways. 20V is what it measures fresh off the charger with nothing drawing from it; 18V is what it settles at under load, and that is the figure most other brands print on the tool. So a 20V battery and an 18V tool are the same class of battery, which is exactly why an adapter between them works.
Will this fit my other Black and Decker batteries?
Only Black and Decker 20V batteries. Black and Decker also sells Black and Decker 18V Ni-Cd, and those use a different socket — same brand, different rail and terminals, so they need their own adapter. Compare the sliding rail on your battery against the photos before ordering.
How do I find the right adapter on this page?
Use the selector at the top: pick the platform on the other side of the pair and it takes you straight to the one adapter that joins them. Every combination in that list is one we actually make, so if it is there, it exists.
Can I go the other way round — run Black and Decker 20V tools from another brand’s battery?
Yes. Use the swap button next to the selector above and the page turns the search around, from Black and Decker 20V tools back to the batteries that can run them.
Can I charge a Black and Decker 20V battery through the adapter?
No. The adapter carries current from the battery to the tool and does nothing else — there is no charging circuit inside it. Keep charging Black and Decker 20V batteries on their usual Black and Decker charger.
Will an adapter damage my Black and Decker 20V battery or my tool?
Used with undamaged, compatible equipment it is not expected to. Black and Decker 20V batteries are lithium-ion with their own protection circuit built into the battery, and it keeps doing its job through the adapter. Stop when the tool noticeably slows rather than running the battery flat, and stop using the adapter if it becomes unusually hot or the contacts look damaged.
Does it work with third-party Black and Decker batteries?
Usually. What matters is the socket, not the badge: if the battery slides onto a Black and Decker 20V tool and locks the way an original does, the adapter will take it. Aftermarket batteries do vary in moulding, so if yours looks unusual send us a photo and we will check before you order.