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Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack

Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack

4.5· 1,066 ratings

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$124.00at WalmartObserved at 4:22 PM

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Our take on the Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack

The Milwaukee 48-11-1852 is a two-pack of M18 REDLITHIUM XC 5.0Ah 18V batteries, the extended-capacity pack for Milwaukee's M18 cordless tool line. Each pack holds 5.0 amp-hours of charge, runs Milwaukee's REDLINK electronics for overload and heat protection, and has a built-in fuel gauge. It fits more than 250 M18 tools, from drills and impact drivers to grinders and saws. At $109 at eBay as of November 4, 2026, the pair is priced well below what two 5.0Ah packs usually cost.

Best forContractors and tradespeople running M18 tools all dayOwners of several M18 tools who want spare packsHeavy jobs like sawing, grinding and drillingCold-weather and outdoor work
Pros
  • 5.0Ah capacity gives long runtime per charge
  • Two batteries in one purchase
  • REDLINK electronics guard against overload and overheating
  • Fuel gauge shows charge level on the pack
  • Fits the full M18 lineup of 250+ tools
Cons
  • Heavier and bulkier than compact 2.0Ah or 3.0Ah packs
  • Only works with M18 tools, not M12 or other brands
  • Chargers sold separately
  • Older cell design than Milwaukee's High Output line

Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack prices at every store

  • WalmartNew

    In stockSold by Mass Depot LLC

    $124.00Observed at 4:22 PM
    Visit store
  • Home DepotNew

    In stock

    $269.00Observed at 4:22 PM
    Visit store

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart
  • Ace HardwareCheck price at Ace Hardware
  • BrawncoCheck price at Brawnco
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  • Blain's Farm & FleetCheck price at Blain's Farm & Fleet
  • Grainger Industrial SupplyCheck price at Grainger Industrial Supply
  • MSC Industrial SupplyCheck price at MSC Industrial Supply
  • Ohio Power ToolCheck price at Ohio Power Tool
  • The Milwaukee StoreCheck price at The Milwaukee Store
  • SupplyHouse.comCheck price at SupplyHouse.com
  • Tool NutCheck price at Tool Nut

Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack price history

Lowest price we've seen: $124.00 on Nov 4 at Walmart. Tracked across 13 stores since Nov 4.

What reviewers say

Owners rate the pack highly, at 4.5 out of 5 from 1,066 ratings. Tradespeople praise the runtime and durability on demanding tools, while some note the weight and the cost of replacing packs.

Pros
  • Long runtime on saws, grinders and drills
  • Holds up to drops and jobsite abuse
  • Fuel gauge is accurate and handy
  • Good value as a two-pack
Cons
  • Noticeably heavier than compact packs
  • Charging a full pack takes a while
  • Price per pack is high outside sales

About the Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack

Power through demanding applications with the Milwaukee M18 REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack (48-11-1852) — a 2-pack engineered for professionals who need maximum runtime, durability, and performance. Designed for contractors, electricians, plumbers, and serious DIYers, these high-capacity batteries deliver up to 2.5x more runtime, 20% more power, and 2x longer life compared to standard lithium-ion batteries. Each REDLITHIUM XC 5.0 battery features advanced cell construction and smart electronics that optimize power output and safeguard against overload, overheating, and over-discharge. Built to perform in harsh conditions, the rugged housing protects against water, vibration, and impact, while the internal design routes moisture away from sensitive electronics — extending the lifespan and maintaining performance even in temperatures below 0°F (-18°C). Milwaukee’s REDLINK Intelligence enables seamless communication between tool, battery, and charger to ensure peak performance and protection during heavy-duty use. The integrated fuel gauge provides real-time battery status, reducing downtime and improving productivity. Compatible with over 250+ Milwaukee M18 cordless tools, including drills, impact drivers, grinders, saws, and nailers, this 2-pack gives professionals the power, versatility, and confidence to get more done on every charge. Whether you’re working in the shop, on the jobsite, or outdoors, the M18 REDLITHIUM XC 5.0Ah batteries deliver consistent, fade-free power that lasts.

Specifications

color
RedSource
size
3.310 x 7.480 x 9.920 inSource

Questions and answers

Is the 2-pack worth it over buying single batteries?
Yes, if you run several M18 tools. Two 5.0Ah packs let you keep one on the tool and one on the charger, and the pair at $109 at eBay as of November 4, 2026 costs less than two singles typically do.
How does the XC 5.0Ah compare to the High Output 5.0Ah?
The High Output pack uses newer cells and delivers more power in high-drain tools like grinders and circular saws. The standard XC 5.0Ah is cheaper and fine for drills, drivers and most saws.
How long does a charge last?
Runtime depends on the tool. Expect several hours of drilling and driving, or roughly 30 to 60 minutes of continuous cutting or grinding on a 5.0Ah pack.
Which tools does it fit?
Any Milwaukee M18 cordless tool, more than 250 models, plus M18 chargers. It does not fit M12 tools or other brands.
What is in the box?
Two M18 REDLITHIUM XC 5.0Ah batteries. Charger and tools are not included.
When is it cheapest?
Battery two-packs drop during Milwaukee promotions and holiday sales. The $109 eBay price as of November 4, 2026 is already low for the pair.
Where is the Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack cheapest?
At Walmart, for $124.00, as of our latest check.
What do buyers say about the Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack?
Rated 4.5 out of 5 from 1,066 ratings.
Where can I buy the Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack?
14 stores we checked sell it, including Walmart, Home Depot, eBay, Ace Hardware, Brawnco.

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