Milwaukee 48-11-1865ZY M18 REDLITHIUM High Output XC 6.0Ah Battery Pack

Maintain tool speed under load and cut down on changeouts with Milwaukee’s 48-11-1865ZY M18 REDLITHIUM HIGH OUTPUT XC6.0. This 18V lithium-ion pack delivers the step up many crews want from a mid-size battery: 50% more power and 50% cooler operation compared to standard M18 REDLITHIUM XC packs. That means grinders, circular saws, and rotary hammers stay in the cut longer before tapering off, while compact tools get a noticeable bump in punch without a big weight penalty. Designed for real jobsites, the XC6.0 keeps working in cold conditions (below 0°F / −18°C) and provides fade-free power across heavy applications so you can push tasks through without babying the battery. Inside, REDLINK™ Intelligence coordinates tool-battery-charger communication for optimized output and overload protection, while best-in-class pack construction helps shield cells from vibration, heat, and daily handling. An on-pack fuel gauge lets you plan swaps before a pack goes flat. Fully compatible with 150+ M18 cordless tools, the XC6.0 is a practical choice when you want more work per charge and steadier performance—without moving up to the larger, heavier HD packs.

Milwaukee M18 REDLITHIUM High Output XC 6.0Ah Battery Pack At a Glance

• 50% more power vs. M18 REDLITHIUM XC: Drives high-draw tools through tougher cuts and grinds.
• Runs 50% cooler: Better thermal headroom for repeated, heavy applications.
• Fade-free output: Maintains speed under load across the discharge curve.
• Cold-weather ready: Reliable operation below 0°F / −18°C.
• REDLINK™ Intelligence: Optimized performance and overload protection.
• Onboard fuel gauge: Quick, accurate status checks in the field.
• System compatibility: Powers 150+ M18 drills, saws, grinders, lights, and more.
• Balanced size/weight: Productive runtime without HD-class bulk.

Markets

• General Construction & Remodeling Longer cuts and fewer stalls on framing saws, recip saws, and compact routers during day-to-day builds.
• Concrete & Masonry Strong output for SDS-Plus rotary hammers and cut-off tools; keeps speed steadier when drilling anchors in cold mornings.
• Metal Fabrication & MRO Cooler running on cut-off and grinding tasks; fade-free power helps maintain wheel speed across batches.
• Electrical & Mechanical Trades Reliable runtime for hole-saws, self-feed bits, and fastening work without frequent battery swaps.
• Facility Maintenance & Municipal Standardizes one M18 battery across mixed crews and tools to simplify charging and rotation.
• Utilities & Field Service Durable pack build and cold-weather performance for bucket, vault, and roadside work.

If your M18 cordless tools feel a step short on runtime or sag under load with standard XC packs, the HIGH OUTPUT XC6.0 is the easy upgrade. You get 50% more power to keep grinders, saws, and hammers pulling through denser material, and 50% cooler operation that helps sustain performance during repeated cuts and fast drilling. REDLINK electronics manage temperature and current to protect both the pack and the tool, while fade-free delivery keeps speed consistent until it’s time to swap. With full M18 compatibility and a mid-size footprint, the XC6.0 fits almost any kit: big enough for serious work, small enough to keep tools balanced. Add fast charge options—~64 min on Rapid or ~35 min on Super Charger—and crews spend more time working and less time waiting on a battery bay.

Milwaukee 48-11-1865ZY M18 REDLITHIUM High Output XC 6.0Ah Battery Pack Features

• REDLINK Intelligence: provides optimized performance and overload protection using total system communication between tool, battery and charger
• Best-in-class construction: offers long-lasting performance and the best protection against jobsite conditions
• Fuel gauge Onboard: displays remaining run-time
• Versatility: powers more than 150 M18 cordless solutions
• LED on foot of tool for better lighting in dark spaces
• Compatible with all M18 batteries & tools

Milwaukee 48-11-1865ZY M18 REDLITHIUM High Output XC 6.0Ah Battery Pack Includes

• (1) M18™ REDLITHIUM™ HIGH OUTPUT™ XC6.0 Battery Pack (48-11-1865)

Milwaukee 48-11-1865ZY M18 REDLITHIUM High Output XC 6.0Ah Battery Pack Specifications

• Manufacturers Part Number: 48-11-1865ZY
• Former Part Number: 48-11-1865
• GTIN: 00045242533381
• Battery Platform: Milwaukee M18
• Voltage: 18V
• Capacity: 6.0 Ah
• PWR Level: PWR3
• Full Recharge (Standard Charger): ~119 min
• Full Recharge (Rapid Charger): ~64 min
• Full Recharge (Super Charger): ~35 min
• Assembled Dimensions: 5.46″ (L) × 3.33″ (W) × 3.25″ (H)
• Assembled Weight: 2.38 lb
• Battery Type: Lithium-ion; fade-free output; cold-weather operation
• Fuel Gauge: Yes
• System Compatibility: 150+ M18 cordless solutions

Milwaukee 48-11-1865ZY M18 18V Lithium-Ion Cordless REDLITHIUM HIGH OUTPUT XC 6.0Ah Battery Pack Warranty

• Milwaukee’s 3 Year Limited Warranty

Why Professionals Choose the Milwaukee M18 REDLITHIUM High Output XC 6.0Ah Battery Pack

Pros pick the XC6.0 because it strikes a practical balance between power, runtime, and weight on the M18 platform. The 50% power increase helps tools stay aggressive in dense lumber, metal, and masonry, while the cooler running design sustains output during repeat passes. REDLINK protection reduces the risk of overloads that slow a shift, and the fuel gauge cuts guesswork on remaining runtime. With dependable performance below 0°F / −18°C and a durable housing made for everyday site conditions, the XC6.0 is a dependable mid-size battery that boosts productivity across drills, saws, grinders, lights, and more—without the bulk of HD packs. For teams standardizing on M18, it’s a straightforward way to get more work per charge and steadier speed where it counts.