Battery compatibility checker

Choose a battery or tool you already own. We show every other brand’s tool or charger it works with, and how sure we are.

Tools the DeWalt 18V XR battery works in
ToolResultConfidenceNotes
DeWalt 18V XRFitsOfficialSame brand and system.
Black & Decker 18V lithiumOnly with modificationReportedSame rails but different notches (DeWalt 5-slot, Black & Decker and Stanley 4-slot). Only fits with physical modification, which voids the warranty and is not recommended.
Stanley Fatmax V20 18VOnly with modificationReportedSame rails but different notches (DeWalt 5-slot, Black & Decker and Stanley 4-slot). Only fits with physical modification, which voids the warranty and is not recommended.
Porter Cable 20V MaxUnknownInferredSlot pattern not recorded.
Chargers that charge the DeWalt 18V XR battery
ChargerResultConfidenceNotes
DeWalt 18V XRFitsOfficialSame brand and system.
Black & Decker 18V lithiumUnknownReportedNo reports of cross-brand charging.
Porter Cable 20V MaxUnknownInferredSlot pattern not recorded.
Stanley Fatmax V20 18VUnknownReportedNo reports of cross-brand charging.

Part of the Stanley Black & Decker 18V battery system. 14 cross-brand adapter combinations are sold or reported by owners. See the adapter finder and its risks.

How sure are we? What the confidence levels mean
Official
The manufacturer says so, or it is the same brand and system.
Verified
Confirmed by us, or by several independent owners with photos.
Reported
One or two owners report it.
Inferred
Likely from the same maker or shape, but nobody has confirmed it.
Disputed
Owners disagree. Treat as unsafe until confirmed.