The MILWAUKEE MX FUEL REDLITHIUM FORGE HD12.0 BATTERY/SUPER CHARGER EXPANSION KIT delivers a 65min charge time to 100% to maximize your productivity. Super Chargers are Milwaukees fastest chargers, providing you with the fastest charge times on your MX FUEL REDLITHIUM batteries. REDLITHIUM FORGE are Milwaukees most powerful, fastest charging, and longest life batteries. The REDLITHIUM FORGE HD12.0 delivers 2X more runtime vs. MX FUEL REDLITHIUM XC406 (XC6.0), allowing you to deliver more work per charge and run your equipment longer than ever before. The MX FUEL REDLITHIUM FORGE HD12.0 & MX FUEL Super Charger are both COOL-CYCLE Capable. COOL-CYCLE Active Cooling System provides high-speed cooling for less downtime. The active cooling feature works with MX FUEL batteries and chargers that have COOL-CYCLE capability. Both the REDLITHIUM FORGE HD12.0 and Super Charger are ONE-KEY compatible for tracking, management, and the charger includes an adjustable wattage feature to maximize outlet power on site. Both battery and charger features REDLINK Intelligence and communicates cell voltage, temperature, and charge status to optimize the performance. Both battery and charger have full compatibility with the entire MX FUEL Equipment System.