Amazon.com: Powilling P117 Dual Chemistry IntelliPort Charger Li-ion & Ni-cad Ni-Mh Battery Charger 12V MAX and 18V MAX for Ryobi ONE Plus : Tools & Home Improvement
Amazon.com: Fancy Buying Replacement Battery Adapter DCA1820 for Dewalt 18V Tools, Convert 18V / 20V Lithium Battery to NiCad/NiMH Battery, Makes The Battery can be Used for Nickel Drill and Charger :
Amazon.com : VANTTECH 2Pack HPB18 18V 4.0Ah Ni-Mh Replacement Battery for Black and Decker Battery 18V Ni-Mh Compatible with HPB18-OPE 244760-00 A1718 FS18FL FSB18 Firestorm : Tools & Home Improvement