2 X Genuine Makita BL1850 18V 5.0Ah Li-Ion LXT Battery 5AH Star Battery BL1850B | eBay
Makita BL1850-2 18-volt LXT Lithium-Ion 5.0Ah Battery, 2-Pack- Discontinued by Manufacturer (Discontinued by Manufacturer) - Amazon.com
Factory Customized Power Tool Replacement Battery for Makita Power Tools 18V 5ah Bl1850 - China Replacement Battery, Power Tools Battery | Made-in-China.com