Makita 196891-6 18V, 4.0 Ah Li-Ion Battery BL1840B, 10 Pack

The Makita 4.0 Ah battery offers maximum run time for prolonged, heavy-duty applications. 4.0 Ah battery offers 33% increased run time versus 3.0 Ah batteries with no added weight or bulk. 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