Makita Battery Adapter to Hikoki / Hitachi 18V Li-Ion Battery
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
Adaptor Makita To Hitachi & Hikoki 18V Battery Converter Tools BSL1815 BL1815 | eBay
Chicago Air CBA003 18V Li-ion Cordless Battery Adaptor (Makita to HiKOKI/ Hitachi) to suit HUSHACDC Air Compressor