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Milwaukee

Milwaukee 48-11-1852 M18 REDLITHIUM XC 5 Ah Lithium-Ion Extended Capacity Battery (2-Pack)

  • Based on 2,842 reviews
Condition: New
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Availability: In Stock.
Fulfilled by SupplyDeals
Arrives Friday, Sep 26
Order within 13 hours and 5 minutes
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Features

  • Best-in-class construction: offers long-lasting performance and durability
  • Voltage: 18V
  • 20% more powerful and 2.5 times more operating time
  • Compatible with over 60 M18 cordless tools
  • You will receive the item exactly as pictured. Item does not include box.

Description

Delivers up to 2.5X more run-time, 20% more power and 2X more life than standard lithium-ion batteries. The M18 REDLITHIUM XC 5.0 Extended Capacity Battery Pack features superior pack construction, electronics and performance to deliver more work per charge and more work over the life of the pack than any battery on the market. Managed by Milwaukee's exclusive REDLINK Intelligence, the battery features overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. It also provides full system compatibility with 250+ M18 cordless solutions.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 durability FUEL gauge onboard: displays remaining runtime for less downtime on the job All-weather performance: delivers fade free power in extreme jobsite conditions Versatility: powers more than 200 plus Milwaukee M18 cordless power toolsINCLUDES 2x M18 18-Volt lithium-ion XC 5.0 Ah extended capacity batteries

Specs & Other Info

SpecificationDetails
Power Source2 required Lithium-Ion batteries
ManufacturerMilwaukee
Battery CompositionLithium-Ion
Tool CompatibilityWorks with Milwaukee 18V cordless tools
Primary UseFor operating power tools
DimensionsApprox. 5 x 3 x 6 inches
WeightApprox. 3 lbs
Model NumberM18 48-11-1850

Frequently asked questions

The charge time for the Milwaukee M18 XC 5 Ah batteries can vary depending on the charger used. With a standard Milwaukee charger, it typically takes around 90 minutes to fully charge one battery.

Yes, the Milwaukee M18 REDLITHIUM XC 5 Ah batteries are designed to be compatible with the entire M18 line of tools, providing extended run-time and improved performance.

The life expectancy depends on usage patterns, but typically a Milwaukee M18 REDLITHIUM XC 5 Ah battery can last for several years with proper maintenance and care. They're engineered to deliver fade-free power and have no memory effect.

The Milwaukee M18 REDLITHIUM XC 5 Ah batteries are built to function in extreme temperatures as low as 0°F/-18°C and as high as 120°F/49°C. However, for optimal performance and longevity, it's recommended to use and store them within normal temperature ranges.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The customer reviews overwhelmingly confirm the authenticity and high quality of the Milwaukee batteries. Praised for their long-lasting charge and significant performance boost to tools, these batteries seem to be a good investment for power tool users. Customers have also highlighted the value for money, especially when compared to generic alternatives.

Pros

  • 🔋 Verified as genuine Milwaukee batteries, not knock-offs
  • 💰 Good value for the quality provided
  • ⌚ Long battery life compared to generics
  • 🔨 Noticeable power/torque increase in tools
  • 🔌 Compatible with fast chargers for quick recharge

Cons

  • ⚖️ Some find the battery heavy and unwieldy for certain tools
  • ✖️ A customer mentioned issues with other models (5 Ah) from the brand

Should I Buy It?

If you're in need of reliable and long-lasting batteries for your Milwaukee tools, these batteries appear to be an excellent choice. With positive feedback on their longevity, quality, and performance boost, they are likely to be a great investment for both professional and home use. However, be mindful of the weight if you intend to use them with lighter, hand-held equipment.

    • Great value
Size: 2 Count (Pack of 1)
Exelent product
Reviewed in the United States on August 20, 2025 by Ronald
    • Authentic batteries
Size: 2 Count (Pack of 1)
Authentic batteries (used the debug mode to confirm). They charge fine and they last a long time.
Reviewed in the United States on August 30, 2025 by Amazon Customer
    • Genuine Milwaukee
Size: 2 Count (Pack of 1)
So far so good. No issues at all. Came packaged as genuine Milwaukee batteries at a price better then the big box stores locally.
Reviewed in the United States on July 27, 2025 by JD
    • Great Price For A Genuine Milwaukee Battery.
Size: 2 Count (Pack of 1)
A genuine Milwaukee battery for a great price. There are tutorials that show you how to tell genuine batteries from counterfeit. I bought 4 of these and they all passed the test.
Reviewed in the United States on July 3, 2025 by Shankton53
    • Excellent batteries that last all day!
Size: 2 Count (Pack of 1)
Great batteries. Been using them for work 5 days a week. Only use them in a drill and impact, but it lasts a full day at work, don't weigh much more then the 1ah battery I was using. Looking to buy more in the future
Reviewed in the United States on August 22, 2025 by Robert Baker
    • My Milwaukee M18 charger had a problem with these batteries
Size: 2 Count (Pack of 1)
Packaging was poor. The plastic sleeving was cracked because the batteries were rattling around inside the Amazon box. However, there was no visual damage to the batteries themselves. When I purchased my first M18 Fuel drill (over a year ago), it came with a battery and a charger. When this drill was recently stolen, I replaced with a new M18 Fuel drill and bought these two batteries. Both batteries showed only one red bar when they were unpackaged, so they needed charging. The first battery, on insertion, flashed red and green indicating a faulty battery pack. I tried reinserting several times but to no avail. The second battery slow-flashed red, then solid red, but successfully charged the battery. To see if the first battery pack worked at all, I loaded it into my drill. The battery appeared to work fine. I then put the battery into the charger, and, to my surprise, the battery charged up successfully. Again, on completion, the charger light was solid red. I inserted the original battery which showed red during charge and then solid green on completion. So definitely these batteries, although they look identical to the original 5Ahr batteries, somehow differ internally. No idea why. In use the batteries appear fine. I haven't done a rigorous test of battery life, but the seem to perform fine compared to the original battery. If I had to guess, I suspect Milwaukee have made changes to the battery pack and the older charger seems confused by the new version. I will probably go out and buy a couple more batteries from my local store as I'm not sure I trust these ones. In general, MIlwaukee batteries, rather than clones, have a good reputation and deliver true 5AHr endurance. They are expensive, but worth the money. However, having them misbehave during charging was 'unsettling'. ... show more
Reviewed in the United States on March 21, 2024 by Alastair G. Stell
    • Excellent OEM batteries received from Jeff's Gargage. Check out seller before ordering as they vary!
Size: 2 Count (Pack of 1)
Received 2 pack in Milwaukee sealed OEM packaging. Cosmetically, product package and batteries identical to ones from Home Depot. Did not come in plastic bags but full Milwaukee package. Charged from 1 bar to full in 20min, using Milwaukee Fast Charger (matches charge time of Home Depots). Did not take apart to examine inside of components or battery types to compare though. But for this price, I took the chance. Mine came from Jeff's Garage which is an excellent seller on Amazon. Depending on seller, is what YOU would receive. Batteries received production 6mths ago which is ideal. Not old and sitting around. BE FOREWARNED THAT IF YOU BUY ANY MILWAUKEE PRODUCTS ON AMAZON, MILWAUKEE DOES NOT HONOR WARRANTY. AMAZON NOT AUTHORIZED SELLER FOR MILWAUKEE. SO BUY "AS IS". Make sure to click on the seller name to read how long they have been on Amazon, ratings, etc before ordering ... show more
Reviewed in the United States on August 13, 2025 by Grizzly Bear
    • Best battery product out there
Size: 2 Count (Pack of 1)
If you're a milwaukee tool lover then you already know how great this is
Reviewed in the United States on August 24, 2025 by patch

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