Makita BL1850-2 18-volt LXT Lithium-Ion 5.0Ah Battery, 2-Pack- Discontinued by Manufacturer (Discontinued by Manufacturer) - - Amazon.com
18v 6000mah Rechargeable Battery For Makita Power Tool Battery, With Led Indicator Lithium Ion Replacement Lxt Bl1860 1850 - Rechargeable Batteries - AliExpress
Makita 18V LXT Lithium-Ion High Capacity Battery Pack 5.0 Ah with LED Charge Level Indicator (2-Pack) BL1850B-2 - The Home Depot