Amazon.com: 18V DC18SF 4-Port Fast Charger with Dual USB Port Compatible with Makita 14.4V 18V LXT Li-ion Battery BL1840 BL1850 BL1860 BL1890, Replacement for Makita 18 Volt Battery Charger DC18RC DC18RD :
Amazon.com: 6-Ports Rapid Charger Replace for Makita 18V Battery Charger DC18SF Charging for Makita BL1815 BL1820 BL1830 BL1850 BL1860 BL1840 BL1430 BL1415 : Tools & Home Improvement
Makita 18V Lithium-ion 4-Port Charger DC18SF - The Home Depot