Milwaukee M18 REDLITHIUM XC4.0 Extended Capacity Battery Pack

The milwaukee 48‑11‑1840 M18 REDLITHIUM XC4.0 delivers red lithium xc 4.0 extended runtime and up to 20 % more power than standard lithium‑ion packs. Designed for professional users, it runs cooler and operates down to −18 °C, ensuring fade‑free output in extreme conditions. Integrated REDLINK™ intelligence protects against overload and cell drift. Rugged construction resists impact and vibration, while it remains fully compatible with all M18 tools.

Extended Runtime XC4.0

Offers up to twice the runtime of standard packs for prolonged jobsite performance.

Delivers more consistent output under load compared to standard capacities.

LED indicator displays remaining runtime clearly during use.

System communication between tool, battery, and charger prevents overload and extends battery life.

Cools efficiently and delivers fade‑free power even at 0 °F (−18 °C) or below.

Battery Line: REDLITHIUM XC4.0

Voltage: 18 V

Capacity: 4.0 Ah (~72 Wh)

Weight: ~1.54 lb

Dimensions: approx. 4.5 in (L) × 3.1 in (W) × 2.8 in (H)

Charge Time (Standard Charger): ~76 min (Rapid/Super Charger ~48 min)

Housing: Rugged plastic/rubber build

Compatibility: Powers 40–60+ Milwaukee M18 tools

Battery Chemistry: Lithium‑Ion

This product uses lithium‑ion chemistry and may present fire or chemical hazards if damaged, over‑charged, improperly stored, or exposed to excessive heat. Always follow Milwaukee’s safety instructions and handling guidelines.