Our M18 REDLITHIUM FORGE XC8.0 Battery Pack delivers HIGH OUTPUT 12.0 power in a smaller size, high-speed cooling for less downtime in high-demand applications, 35-minute supercharge to 80%, and the longest life vs REDLITHIUM batteries. REDLITHIUM FORGE are our most powerful, fastest charging, and longest-life batteries. The M18 REDLITHIUM FORGE XC8.0 delivers 8 amp hours of runtime with the same power as the M18 REDLITHIUM HIGH OUTPUT HD12.0, in a smaller size and lighter weight design. The M18 REDLITHIUM FORGE XC8.0 is COOL-CYCLE capable. COOL-CYCLE Active Cooling System provides high-speed cooling for less downtime. Patented ingress coating provides increased protection to maximize active cooling through an upgraded venting design. The high-speed cooling feature works with M18 chargers that have COOL-CYCLE capability. When paired with the M18 Dual Bay Simultaneous Super Charger, this battery charges in just 35 minutes to 80%.