Milwaukee M12 Redlithium Xc 4.0Ah Extended Capacity Battery Pack

The 48‑11‑2440 is a heavy-duty milwaukee m12 xc4.0 battery, designed for professionals needing extended runtime and power in a compact 12 V format. Featuring 4.0 Ah capacity, REDLINK™ electronics with cell-level monitoring, and temperature regulation, this pack offers 2× the runtime, 20 % more power, and 2× the recharge lifespan over standard lithium batteries. Rugged, runs cooler in extreme conditions, and compatible with all M12 cordless tools—built to outperform on the jobsite.

2× Runtime & 20 % More Power

High-capacity cells support demanding tools longer

Protects against overloads and overheating via advanced electronics

Runs reliably below 0 °F (–18 °C) and stays cool under load

Designed to endure harsh jobsite conditions and frequent usage

Convenient base for upright placement and works with on-tool battery indicators

Model: 48‑11‑2440

Voltage: 12 V nominal

Capacity: 4.0 Ah (≈48 Wh)

Weight: approx. 0.88 lb (0.40 kg)

Compatibility: All Milwaukee M12 cordless tools & chargers

Electronics: REDLINK™ Smart Protection (overload, temperature, cell-balancing)