Milwaukee M18™ REDLITHIUM™ HIGH OUTPUT™ CP3.0 Battery 2-Pack (48-11-1837)

XC Power. CP Size. 50% More Power and 50% Cooler Runtime for Your Entire M18™ Fleet.

The Milwaukee M18™ REDLITHIUM™ HIGH OUTPUT™ CP3.0 Battery Pack provides 50% more power and runs 50% cooler than standard M18™ REDLITHIUM™ CP batteries. This massive increase in performance allows you to experience the power of a large XC battery in a lightweight, compact package. Whether you are driving long structural screws or drilling high-speed holes overhead, the CP3.0 ensures your tools maintain peak torque and speed without the added weight that causes user fatigue.

Built for the toughest jobsites, these batteries feature superior construction and advanced electronics to protect against overloading and extreme temperatures, ensuring fade-free power from the first screw to the last.

Key Features & Professional Benefits:

• HIGH OUTPUT™ Technology: Delivers 50% more power than standard M18™ CP batteries, allowing your compact tools to punch well above their weight class.
• Compact & Lightweight Ergonomics: The ideal choice for overhead work and tight spaces. Reduces the overall weight of your drill or impact driver for all-day comfort.
• Superior Heat Management: Runs 50% cooler than standard packs, allowing you to push your tools harder and longer through heavy-draw applications without thermal shutdown.
• Advanced Intelligence: REDLINK™ Intelligence provides optimized performance and overload protection using total system communication between tool, battery, and charger.
• Jobsite Durability: Features a rugged rubber overmold and internal "crush-zone" construction to withstand drops, vibrations, and the harsh environments of commercial jobsites.
• All-Weather Performance: Engineered to deliver consistent, fade-free power in extreme temperatures, even in sub-zero winter conditions.
• On-Board Fuel Gauge: Integrated 4-bar LED display shows remaining runtime at the push of a button, so you know exactly when to swap.

Product Specifications:

Efficiency in Every Charge

The 48-11-1837 isn't just a battery replacement; it’s a tool performance upgrade. By bringing HIGH OUTPUT™ technology to the compact battery segment, Milwaukee has created the perfect balance of agility and strength. For the professional who values a lightweight setup but refuses to compromise on power, this 2-pack is the essential fuel for your M18™ system.

Stop choosing between power and weight. Upgrade to the Milwaukee 48-11-1837 2-Pack and experience XC-level performance in a compact, CP frame.

Power Your High-Speed Workflow 

Pair your new HIGH OUTPUT™ batteries with the fastest charging technology to keep your crew moving.

[→ SHOP ALL M18™ CHARGERS HERE]

• [M18™ Dual Bay Simultaneous Super Charger] – Top Recommendation: Charge both of your CP3.0 batteries at once in record time.
• [Milwaukee M18 FUEL™ 1/2" Hammer Drill/Driver] – Maximize the torque and speed of your drill with the extra power of CP3.0.
• [PACKOUT™ Compact Organizer] – The perfect size to keep your spare batteries and charger protected and organized on the truck.