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 and temperature) to maximize battery life. Style: Slide on. Charging time: 22 minutes with DC18RC rapid charger.

Built-in memory chip communicates with charger CPU to optimize the charging process based on the unique conditions of each battery.