Amazon.com: 300W Power Inverter for Makita 18V Battery 6.0Ah, 110V AC Power Inverter Compatible with Makita 18 Volt Battery BL1860 BL1860B BL1850B BL1850 Series Battery, Replacement Battery for Makita 18V Tools :
Makita BL1850-2 18-volt LXT Lithium-Ion 5.0Ah Battery, 2-Pack- Discontinued by Manufacturer (Discontinued by Manufacturer) - Amazon.com