MILWAUKEE BATTERY M18FB8 LI-ION 8.0AH

Charged to 80% in 35 minutes with the M18 dual bay super charger, fully charged in 45 minutes.
COOL-CYCLE™: Active cooling system for high-speed cooling and less downtime.
REDLITHIUM™ FORGE™: Offers the most power, fastest charging, and longest battery life within the REDLITHIUM™ range.
Longest life for most recharges and best performance over the battery's lifespan, with optimal protection against working, weather, and environmental conditions.
Longer operating time in demanding applications.
Resistant housing designed for better protection against oils, chemicals, and greases.
Improved fuel gauge for readability in direct sunlight.
REDLINK™ intelligence: Optimizes performance and overload protection through total system communication between tool, battery, and charging system.
Compatible with all M18™ tools.