Makita BL1840BX2DC18RC Twin BL1840 4Ah Li-Ion Battery with DC18RC Charger
Amazon.co.jp: Hipoke Makita 14.4 - 18 V MAX LED Rechargeable Work Light, Makita 18 V Lithium Ion Battery, BL1840, BL1845, BL1850, BL1830B, BL1840B, BL1820B, BL1860B, Built-in USB Port, Battery Sold Separately :
Makita BL1840-10 Ten Pack of 18V 4Ah Li-Ion Battery BL1840 - WM Dyck & Sons