Battery Adapter Converter For-18V To Black&Decker/Porter Cable 18V-Tool | eBay
Amazon.com: 1x Adapter Only Upgrade for Porter Cable Old 18v (Not 20v MAX) Cordless Tools Compatible with Milwaukee M18 Red Lithium Batteries - Adapter Only : Tools & Home Improvement
PORTER-CABLE 20-V Lithium-ion Battery Charger (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com
Amazon.com: BSP20PO 20V Battery Adapter for Porter-Cable 18V Power Tools, Convert for Porter Cable 20V MAX Lithium Batteries PCC685L PCC680L PCC685LP to for Porter-Cable 18V NiCd NiMh Battery PC18B PC18BL : Tools