18V For Makita 3.0Ah Lithium-ion Charger or Battery LXT BL1860 BL1830 BL1850 US | eBay
Amazon.com: EID 150W Power Inverter Portable for Makita 18V BL1830 BL1850 Lithium Battery,DC 18V to AC 110V Outdoor Inverter with AC Outlet and Dual USB+200LM LED : Automotive