The Milwaukee M18? Dual Bay Simultaneous Super Charger delivers up to 6X faster charging to 80%, maximizing productivity by reducing downtime throughout the day. In just 15 minutes, users can charge an M18? REDLITHIUM? FORGE? XC6.0 Battery to 80%, allowing users to get back to work faster than ever before. Super Chargers are Milwaukee?s fastest chargers, providing you with the fastest charge times for all of your M18? REDLITHIUM? batteries. This Super Charger is capable of simultaneously charging up to 2 batteries, while leveraging CHARGE ADAPT? Adaptive Charge Distribution to distribute power between bays for maximized productivity. The CHARGE ADAPT? LED light will illuminate for the battery that is able to receive the most amount of power, resulting in the user getting one pack back faster than fully simultaneous chargers. The M18? Dual Bay Simultaneous Super Charger is COOL-CYCLE? Capable. COOL-CYCLE? Active Cooling System, provides high-speed cooling for less downtime. The active cooling feature works with M18? batteries that have COOL-CYCLE? capability. The charger features REDLINK? Intelligence and communicates directly with your battery to monitor cell voltage, temperature, and charge status to optimize the performance and maximize the life of the pack. This charger is compatible with all M18? Batteries.