Milwaukee M18 18V Lithium-Ion REDLITHIUM Forge XC 8.0 Ah Battery Pack

Delivers HIGH OUTPUT 12.0 power in a smaller size and lighter weight, COOL-CYCLE Active Cooling System provides high-speed cooling for less downtime with COOL-CYCLE capable chargers, 35min supercharge to 80% with the M18 Dual Bay Simultaneous Super Charger, Longest life for the most recharges and best performance over the life of the pack, REDLITHIUM FORGE provides the most powerful, fastest charging, and longest life batteries within REDLITHIUM, Fully compatible with the M18 system, featuring 250+ tools, Patented ingress coating provides increased protection to maximize active cooling through an upgraded venting design, PWR Level 4 on the REDLITHIUM Power scale, Resistant housing designed to provide increased protection against exposure to common oils, greases, and solvents