Amazon.com: 18V Battery Adapter for Hitachi to for Makita Lithium Battery, DC DC 18V Battery Converter for Electric Tools, No Need Buy One More Battery : Tools & Home Improvement
Amazon.com: for Makita 18V Battery Adapter Convert to for Hitachi 18V Lithium Cordless Tool and for Metabo18V (Not 36V) Slide Style Tools : Tools & Home Improvement
ZWINCKY Battery Adapter For Makita 18v Bl Series Lithium Battery Converted To For Hitachi/Hikoki 18v Lithium Battery Tool