Makita MAK-194230-4 18V 3Ah Li-Ion Battery BL1830B (2-Pack)

LED charge level indicator displays approximate remaining battery power Battery Protection System provides Over-Discharge, Temperature and Current Protection for enhanced performance, battery cycle life and overall battery life (when used with STAR marked tool) Li-Ion Batteries offer extended run time versus Ni-Cad and Ni-MH batteries Li-Ion Batteries offer more cycles over the life of the battery versus Ni-Cad and Ni-MH batteries Optimum Charging System utilizes 3 Active Controls (Current, Voltage & Temperature) to maximize battery life  Built-In Memory Chip communicates with Charger CPU to optimize the charging process based on the unique conditions of each battery. Specifications Model Number BL1830B Cell Type Lithium-Ion (Li-Ion) Capacity 3.0 Ah Style Slide-On Charging Time 22 minutes with DC18RC Rapid Charger