Black & Decker 244760-00 HPB18-OPE 18v 18 volt NiCad single source battery (5 Pack) For use with all spring-loaded battery style Firestorm and Black & Decker 18-Volt products Spring loaded batteries easily install and remove from the tool Perfect for Black & Decker outdoor lawn & garden tools 2 Year Manufacturer Warranty Includes (5) HPB18-OPE batteries