Milwaukee M18™ REDLITHIUM™ XC5.0 Extended Capacity Battery delivers exceptional performance with 5.0 amp-hours of runtime and advanced REDLINK overload protection. Designed for heavy-duty use, this M18 battery pack excels even in extreme cold conditions below 0°F (-18°C). It features an onboard fuel gauge for easy monitoring of remaining runtime, while an integrated temperature management system and individual cell monitoring help extend battery life. The durable outer case safeguards the electronics against water, heat, and drops, ensuring reliable operation on the job site. Upgrade your Milwaukee M18 cordless tools with this REDLITHIUM XC5.0 Battery to experience up to 2.5 times more runtime, 20% more power, and twice the number of recharges d to standard lithium-ion batteries. Model Number: 48-11-1850