Milwaukee M12 REDLITHIUM XC 4.0 Ah Battery (48-11-2440)

Power that lasts with Milwaukee M12 REDLITHIUM XC 4.0 Ah Battery

The Milwaukee M12 REDLITHIUM XC 4.0 Ah battery packs extended capacity into a compact 12‑volt form, designed to keep cordless projects moving longer between charges. Built for daily demands on busy job sites, this battery pairs lightweight handling with serious runtime for a wide range of M12 tools.

With a 4.0 Ah extended capacity, this battery delivers more usable power per charge than standard packs, letting you complete more steps in a single session. The design emphasizes balance and resilience, so you can carry it through a full day of work without frequent swaps.

Smart protection and reliable performance

REDLINK Intelligence provides smart protection, preventing overload and guarding cells during heavy use. This system helps maintain steady performance across tasks, heat, and vibration, while keeping the pack within safe operating conditions.

Cold-weather readiness

Operation down to 0 degrees Fahrenheit means you can rely on the battery in chilly environments, early mornings, or unheated spaces. The combination of temperature tolerance and robust construction supports versatility in outdoor or rugged job sites.

Compatibility and versatility

As part of the M12 System, this XC 4.0 Ah pack works with Milwaukee’s extensive line of M12 tools—over 70 cordless models.That breadth gives you flexibility to mix and match tools for different tasks without swapping to a different battery platform.

Real-world benefits you may notice

• Longer runtimes per charge for framing, drilling, or fastening tasks
• Consistent power across a work session to minimize interruptions
• Lightweight, balanced feel that reduces fatigue on long jobs
• Rugged build designed to withstand typical on-site conditions

Use-case scenarios

• Prolonged use with mid- to high-demand M12 tools like drills and impact drivers
• Work in outdoor or unheated spaces without frequent recharging
• Daily tasks across construction, cabinetry, electrical, and light fabrication projects
• From early morning setups to late-afternoon finishes with fewer battery swaps