Amazon.com: 2 Packs 18V 3.6Ah Replacement Battery Compatible with dewalt 18 Volt Battery DC9096 DC9099 DC9098 DW9099 DW9098 + DC9310 Charger for 7.2V-18V Ni-Cd&Ni-Mh Battery : Tools & Home Improvement
Amazon.com: 3600mAh 18v DC9096 Replacement Battery Compatible with 18 Volt Dewalt Battery and Charger Compatible with DC9098 DC9099 DW9099 DW9098 Battery and DC9310 Charger for 7.2v to 18v Ni-Mh Ni-Cd Battery :
Amazon.com : DC9098 DC9099 Battery Replacement for Dewalt 18V Battery + Fast Replacement DC9310 Charger Compatible with Dewalt 7.2-18V Ni-Cad Ni-Mh 18V Charger : Tools & Home Improvement