Milwaukee 48-11-1850 M18 18 Volt Lithium-Ion Cordless REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack

The Milwaukee 48-11-1850 M18 REDLITHIUM XC 5.0Ah 18V Lithium-Ion Extended Capacity Battery Pack is designed for tradespeople who rely on cordless tools to run all day. Built for the M18 cordless system, this 5.0Ah battery provides significantly more runtime than standard lithium-ion packs, along with higher sustained power under load. With up to 2.5X more run time, 20% more power, and 2X more life than standard lithium-ion batteries, it supports heavier drilling, fastening, cutting, and grinding without constant trips to the charger.

REDLINK Intelligence monitors each cell for optimized charging and discharging, helping to protect the pack and tool from overload, over-discharge, and overheating. The internal construction and housing are designed for jobsite use with a durable plastic and rubber body that resists impact and wear. An onboard fuel gauge lets users quickly check remaining charge so they can plan swaps between packs rather than guessing. Compatible with the entire M18 line of cordless tools, this XC 5.0Ah battery pack is a key power source for users who want one battery system to handle drilling, cutting, lighting, and more across the workday.

Milwaukee M18 Lithium-Ion REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack At a Glance

• Extended Capacity 5.0Ah Pack: Provides longer runtime than standard packs for demanding cordless tool applications.
• M18 System Compatible: Powers all Milwaukee M18 cordless tools for drilling, fastening, cutting, grinding, and lighting.
• REDLINK Intelligence: Monitors individual cells for optimized charge and discharge, helping prevent overload and damage.
• Onboard Fuel Gauge: LED charge indicator shows remaining runtime to reduce unexpected downtime.
• All-Weather Performance: Delivers fade-free power in a wide range of jobsite temperatures.
• Durable Housing: Plastic and rubber construction stands up to regular handling and transport on site.
• Rechargeable and Efficient: 18V, 5.0Ah (90 Wh) lithium-ion chemistry supports long life and consistent performance.
• Flexible Charging Options: Works with standard, rapid, and super chargers, with charge times as low as 60 minutes.

Markets

• Construction and Renovation: Powers M18 cordless tools for drilling, fastening, cutting, and demolition on residential and commercial projects.
• Electrical, Plumbing, and HVAC Trades: Supports M18 drills, impacts, bandsaws, press tools, and lighting in service and install work.
• Industrial Maintenance and Production: Keeps cordless grinders, impact wrenches, and other M18 tools running in plant and maintenance environments.
• Automotive and Equipment Repair: Provides portable power for M18 impact wrenches, ratchets, lights, and cut-off tools in bays or field service.
• Municipal and Facility Maintenance: Ideal for cordless maintenance tasks in buildings, campuses, and public infrastructure.
• Trade Schools and Training Centers: Demonstrates modern lithium-ion battery technology and system compatibility for students learning cordless tool platforms.
• Serious DIY and Home Workshop Users: A strong choice for homeowners invested in the M18 cordless system who want longer runtimes on big projects.

Contractors, technicians, and maintenance crews benefit from this M18 5.0Ah battery because it extends the working time of their cordless tools while staying within the same familiar platform. Instead of juggling multiple voltages or tool brands, users can standardize around M18 cordless tools and rely on XC 5.0Ah battery packs to handle heavy work such as drilling large holes, running circular saws, or using impact wrenches on anchors and fasteners. The fuel gauge helps schedule battery swaps around natural breaks rather than stopping unexpectedly mid-task. In facilities, automotive shops, and jobsite trailers, a bank of these rechargeable batteries on a charger rack keeps cordless tools in steady rotation. For training programs and serious DIY users, the 48-11-1850 demonstrates how a higher capacity 18V lithium-ion battery can support both performance and runtime on a wide range of cordless applications.

Milwaukee 48-11-1850 M18 18 Volt Lithium-Ion Cordless REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack Features

• REDLINK Intelligence: Provides optimized performance and overload protection through communication between tool, battery, and charger.
• Individual Cell Monitoring: Ensures each cell is charged and discharged correctly to support maximum life and consistent output.
• Extended Runtime: Delivers up to 2.5X more run time than standard lithium-ion packs for longer use between charges.
• Increased Power: Provides up to 20% more power under load compared to standard lithium-ion batteries.
• Long Pack Life: Designed to offer up to 2X more life than standard lithium-ion packs in tough jobsite duty cycles.
• All-Weather Performance: Maintains fade-free power in extreme jobsite conditions across a wide temperature range.
• Onboard Fuel Gauge: Built-in LED indicator shows remaining charge at the press of a button.
• Best-in-Class Construction: Internal design and housing support long service life and resistance to impacts and wear.
• System Versatility: Powers more than (60)+ Milwaukee M18 cordless power tools, improving flexibility across tasks.

Milwaukee 48-11-1850 M18 18 Volt Lithium-Ion Cordless REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack Includes

• (1) Milwaukee 48-11-1850 M18 REDLITHIUM XC 5.0Ah 18V Lithium-Ion Extended Capacity Battery Pack
• (Battery charger not included.)

Milwaukee 48-11-1850 M18 18 Volt Lithium-Ion Cordless REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack Specifications

• Model Number (MFG Part #): 48-11-1850
• GTIN: 00045242345946
• Battery System: M18™
• Battery Series: M18™ REDLITHIUM™ XC
• Battery Type: Power tool battery

Electrical & Performance

• Voltage: 18V
• Amp-Hour Capacity: 5.0Ah
• Energy: 90 Wh
• Battery Chemistry: Lithium-Ion (Li-Ion)
• Rechargeable: Yes
• Run Time (Approx.): Up to 5 hours (application dependent)

Charging

• Standard Charger Recharge Time: 105 minutes (approx. 1.75 hours)
• Rapid Charger Recharge Time: 60 minutes
• Super Charger Recharge Time: 60 minutes (where applicable)
• Minimum Charge Time: 60 minutes

Physical & Construction

• Battery Weight: 1.8 lbs
• Color / Finish: Black / Red
• Housing Material: Plastic / Rubber
• Container Type: Box (packaged)

Compatibility & Use

• Compatibility: Fits all Milwaukee M18 cordless power tools
• Usage: Powering cordless tools
• Corded / Cordless: Cordless system component
• Oil, Grease, and Solvent Resistant: No
• ONE-KEY™ Enabled: No
• Fuel Gauge: Yes (onboard LED)

Milwaukee 48-11-1850 M18 18 Volt Lithium-Ion Cordless REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack Warranty

• Milwaukee’s 3 Year Limited Warranty

Why Customers Choose the Milwaukee M18 Lithium-Ion REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack

Tradespeople choose the Milwaukee 48-11-1850 M18 REDLITHIUM XC 5.0Ah battery because it keeps their M18 cordless tools running longer between charges without changing platforms. On jobs that rely on an M18 drill, impact driver, circular saw, or grinder, the XC 5.0Ah pack adds runtime and consistent power so tasks can be finished without frequent battery swaps. REDLINK Intelligence and individual cell monitoring give technicians confidence that the M18 battery is protected against overload and overheating during heavy work. The onboard fuel gauge helps crews manage multiple packs on the charger rack and plan around low-charge batteries before heading into a crawlspace, ceiling space, or roof. For installers, maintenance teams, and serious DIY users invested in M18 tools, this 5.0Ah lithium-ion battery is a practical way to get more work done per charge while staying fully compatible with existing chargers and cordless tools.