When runtime is non-negotiable on the job site, the Milwaukee M12™ REDLITHIUM™ XC 4.0Ah Extended Capacity Battery Pack (Model 48-11-2440) is the upgrade professional electricians and contractors rely on. Delivering up to 2X more runtime, 20% more power, and 2X more recharges than standard lithium-ion packs, this battery keeps your M12 tools running through demanding rough-in work, panel installations, and finish electrical — without the downtime. Built to perform in extreme Canadian job-site conditions, including temperatures below -18°C, it's the dependable power source that DIYers and seasoned tradespeople trust to get the job done right.

Specifications

Model Number 48-11-2440
Battery Platform Milwaukee M12™
Capacity 4.0 Ah
Battery Type REDLITHIUM™ XC (Extended Capacity)
Voltage 12V
Cold Weather Performance Operates below -18°C (0°F)
Overload Protection Yes — REDLINK™ Intelligence
Discharge Protection Yes — prevents cell damage
Temperature Management Individual cell monitoring system
Compatibility All Milwaukee M12™ cordless tools
Weight 0.99 lbs
Brand Milwaukee Tool