Amazon.com: Replacement Black & Decker 18v HPB18 Battery (1500 mAh,NiCd) - Compatible with Black & Decker HPB18-OPE, Black & Decker A18, Black & Decker HPB18, Black & Decker NST2118, Black & Decker
Black & Decker 18v HPB18 Battery Replacement (1500 mAh,NiCd) - Compatible with Black & Decker HPB18-OPE, Black & Decker A18, Black & Decker HPB18, Black & Decker NST2118, Black & Decker 244760-00 -
Black & Decker 18v NiCD battery tear down - YouTube