Amazon.com: APTOOLER 2 Pack 6.0Ah BL1860B Battery with DC18RC Charger Compatible with Makita 18V Battery BL1860 BL1850 BL1850B BL1840 BL1840B BL1830 BL1830B BL1815B LXT400 18-Volt Power Tools Batteries : Tools & Home
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