Amazon.co.jp: Makita BL1840 Compatible Battery, 18 V, 4,000 mAh, Large Capacity, Lithium Ion Battery, Compatible with BL1830, BL1840, BL1850, BL1860, Set of 2 : DIY, Tools & Garden
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 :