1：Battery type: Lithium-ion, Voltage: 18V, Capacity: 5000 mAh.Get CE,ROHS UL Certificate. Suitable for Makita 18-volt battery and charger (used with DC18RD DC18SD) 2：Applicable Models： Replace Makita 18V battery BL1860, BL1860B, BL1850, BL1850B, BL1840, BL1840B, BL1830, BL1830B, BL1815, BL1825, BL1835, BL19405, BL19404 Cordless Power Tools Batteries. 3:Battery Protections： Made with high quality battery cells, Built-in protection against overcharge, over-discharge, over-current provides short- circuit protection and constant voltage circuit. 4：LED Charge level indicator: Power display can show remaining power in order to avoid over-charging & over-discharging. 5： Conditional refund or replacement for a new battery if there is any quality problem. Battery Specification: Capacity: 5.0Ah Voltage: 18V Type: Lithium ion Replacement for Makita 18V Battery BL1850B with LED Indicator