Li-ion system 18V, Rechargeable battery type, battery voltage: 48111890

The M18™ REDLITHIUM™ HIGH DEMAND™ 9.0 Battery Pack delivers up to 5× more run-time, 35% more power, and runs 60% cooler than standard 18V lithium-ion batteries. The battery is best optimized for high draw products and sustained run-time applications, and it provides the next, large step towards full corded replacement when paired with the M18 system of solutions. It maintains full power and runs substantially cooler through heavy applications, allowing users to push their cordless tools harder and longer than ever before. The M18™ REDLITHIUM™ HIGH DEMAND™ 9.0 battery is fully compatible with 100+ M18™ tools.
Fuel gauge onboard: Displays remaining runtime for less downtime on the job
Best-in-Class Construction: Offers long-lasting performance and durability
All-Weather Performance: Delivers fade free power in extreme jobsite conditions.
REDLINK™ Intelligence: Provides optimized performance and overload protection using total system communication between tool, battery and charger.
Versatility: Powers more than 100 Milwaukee® M18™cordless power tools.

Warranty: 3 year limited warranty