Bl1850 18V 5.0ah Replacement Lithium-Ion Rechargeable Battery Compatible with Makita Bl1850b Bl1850 Bl1830 Bl1860 Power Tools with LED Indicator - China Lithium Battery, Power Tool Battery | Made-in-China.com
2 X Genuine Makita BL1850 18V 5.0Ah Li-Ion LXT Battery 5AH Star Battery BL1850B | eBay