Milwaukee M18 REDLITHIUM HIGH OUTPUT HD 12Ah Battery Pack

The milwaukee 48‑11‑1812 M18 REDLITHIUM HIGH OUTPUT HD 12.0 delivers industry-leading high‑output power that matches 15 A corded tools while operating 50 % cooler than standard HD packs. It offers fade‑free performance and extended runtime—ideal for trade professionals in frigid conditions, delivering ultimate reliability and efficiency. REDLINK™ intelligence and rugged build ensure seamless M18 system compatibility and sustained jobsite durability.

High‑Output Power

Generates 50 % more power versus standard M18 HD batteries for corded-level performance.

Operates up to 50 % cooler, enabling longer tool use under heavy loads.

Provides the most work-per-charge of any pro-grade battery, minimizing downtime.

Performs reliably below 0 °F (−18 °C), suited for extreme conditions.

Powers 150+ (up to 250+) M18 tools for flexible deployment in any kit.

Battery Line: REDLITHIUM HIGH OUTPUT HD12.0

Voltage: 18 V

Runtime: 12.0 Ah

Fuel Gauge: Yes

Power Level: PWR4

Dimensions: ~5.99 in (L) × 3.38 in (W) × 3.89 in (H)

Weight: ~3.4 lb

Material Composition: Rubber/Plastic

Recharge Time (Standard Charger): ~241 min; Rapid Charger: ~130 min; Super Charger: ~60 min