Makita® battery charger, bare tool/kit: bare tool, for use with: BL1850, BL1840, BL1830 and BL1815N battery, lithium-ion battery, 14.4 to 18V battery, 15 to 45 min charging. Makita® DC18RC Battery Charger, for use with BL1850, BL1840, BL1830 and BL1815N Battery, Lithium-Ion Battery