The Milwaukee 48-11-1850 M18 REDLITHIUM™ XC5.0 Battery is the extended-capacity powerhouse for pros running demanding M18 tools—delivering up to 2.5x more runtime than standard M12 CP batteries with superior pack construction for jobsite durability. REDLINK™ Intelligence protects against overloads, overheating, and over-discharge, while the onboard fuel gauge shows remaining charge at a glance. Impact-resistant housing and rubber overmold withstand drops and abuse, powering 300+ M18 tools with fade-free performance in extreme temperatures—your essential for saws, drills, impacts, and lights that run longer and harder.

• 5.0Ah extended capacity – up to 2.5x more runtime than standard CP batteries
• REDLINK™ Intelligence – overload/overheat/over-discharge protection
• Onboard fuel gauge – displays remaining charge for planning
• Impact-resistant housing – rubber overmold for drops & abuse
• Fade-free power – consistent performance in extreme conditions
• Compatible with 300+ M18 tools – full M18 system integration
• Ideal for heavy-duty applications – saws, drills, impacts & lights
• 3-year warranty – Milwaukee reliability you trust
• FREE Shipping!