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Internet # 305081948

Model # 48-11-1865

Store SKU # 1003141977

M18 18-Volt Lithium-Ion High Output Battery Pack 6.0Ah

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$199.00
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  • 50% more runtime, most work/charge of any power tool battery
  • 50% more power to replace 15Amp corded tools & runs 50% cooler
  • Part of the M18 System, featuring over 250+ tools
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Product Details

About This Product

The M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery Pack provides 50% more power and runs 50% cooler vs M18 REDLITHIUM XC battery packs. The optimized combination of size and increased power provides a great solution for the entire range of M18 products. It delivers fade free power and runs substantially cooler through heavy applications, allowing tradesmen to push their cordless tools harder and longer than ever before. This battery provides increased power in extreme cold weather conditions (below 0F / -18C) and delivers more work per charge, driving corded replacement on the jobsite. The REDLITHIUM HIGH OUTPUT XC6.0 battery is fully compatible with 250+ M18 solutions.

Highlights

  • REDLINK Intelligence: Our battery circuitry 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, weather and environmental conditions
  • Fuel gauge onboard: Displays remaining run-time
  • Versatility: Powers all 175-plus M18 cordless solutions
  • Compatible with all M18 tools
  • 3 year battery warranty
  • Includes: (1) M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery Pack
  • Shop All Milwaukee Tools
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 305081948

Model # 48-11-1865

Store SKU # 1003141977

Additional Resources

Shop All Milwaukee
From the Manufacturer

Specifications

Dimensions: H 3.22 in, W 3.3 in, L 5.46 in

Dimensions

Product Height (in.)

3.22 in

Product Length (in.)

5.46 in

Product Width (in.)

3.3 in

Details

Battery Power Type

Lithium Ion

Battery Voltage (V)

18V

Charge time (min.)

60

Charger Included

Charger Not Included

Color Family

Red

Individual Battery Weight

2.38 lb

Number of Total Batteries Included

1

Power Tool Accessory Type

Battery

Power Tool Features

No Additional Features

Rechargeable

Yes

Returnable

90-Day

Used with Equipment Type

Specialty Power Tool

Questions & Answers

I have a Milwaukee m18 xc5.0 battery. It has the one key logo but I don’t see if it’s detectable on my one key app
ByFeb 22, 2025
1 Answer | 
Answer This Question

Hey there! Milwaukee does not make One-Key M18 batteries. Instead, the One-Key technology is integrated into the tools themselves, allowing for customization, tracking, and management of the tools. Can you shoot us an image of the battery so we can look into it? social.media@milwaukeetool.com

By|Mar 27, 2025
    0/0

    (1)

    Are these individually packaged?
    ByFeb 14, 2025
    1 Answer | 
    Answer This Question

    Hey Jonath! Yes, these should come in individual boxes.

    By|Feb 14, 2025
      0/0


      Why is it that all four of my M18 12 mah high capacity batteries only charge three bars and not fully charging? I can’t return them, so I give Milwaukee 0 stars and will purchase tools and batteries that actually fully charge!
      ByFeb 6, 2025
      2 Answers | 
      Answer This Question

      Hey Kevin! Please shoot an email to social.media@milwaukeetool.com so we can try to assist you here!

      By|Feb 8, 2025
        0/0

        Probably your charger maybe the issue. I have thrown out several chargers

        By|Mar 11, 2025
          0/0


          How long will it last with my backpack vacuum
          ByFeb 5, 2025
          2 Answers | 
          Answer This Question

          Hey Ulises! The exact runtime can vary based on the specific usage and settings of the vacuum as well as what specific application.

          By|Mar 1, 2025
            0/0

            I have used this battery and backpack vacuum 4 times so far and have averaged about 30-40 minutes run time on low setting.

            By|Feb 13, 2025
              0/0


              What is run time for charged m18 blower?
              ByDec 9, 2024
              1 Answer | 
              Answer This Question

              Hello! When the M18 FUEL Blower (3017) is paired with the M18 High Output XC 8.0 Ah Battery, you can expect 45 minutes of runtime on 1/2 throttle, 30 minutes of runtime on 3/4 throttle, and 17.5 minutes of runtime on full throttle.

              By|Mar 11, 2025
                0/0

                (2)

                Will the original M18 charger work with the newer 3ah high output battery?
                ByDec 3, 2024
                1 Answer | 
                Answer This Question

                Hello! All M18 Chargers are compatible with all M18 Batteries. - Milwaukee Tool, Social Team

                By|Mar 11, 2025
                  0/0

                  (5)

                  Will these work with the mower?
                  ByNov 9, 2024
                  1 Answer | 
                  Answer This Question

                  All M18 Batteries are compatible with all M18 Power Tools. We do recommend checking out the M18™ REDLITHIUM™ HIGH OUTPUT™ HD12.0 Battery Pack (48-11-1812) and the M18™ REDLITHIUM™ FORGE™ HD12.0 Battery Pack (48-11-1813) for a longest runtime. - Milwaukee Tool, Social Team

                  By|Dec 11, 2024
                    0/0

                    (1)

                    Can i put a forge battery on every milwaukee tools ?
                    ByOct 27, 2024
                    1 Answer | 
                    Answer This Question

                    Hi, Jeff! The M18™ REDLITHIUM™ FORGE™ Batteries are compliable with the entire M18 Product Line. - Milwaukee Tool, Social Team

                    By|Mar 11, 2025
                      0/0

                      (1)

                      Viewing 1-8 of 184

                      Customer Reviews

                      4.7 out of 5

                      • 4.7 out of 4,415 reviews
                      • 86% recommend this product
                      What Customers Say
                      Summarized by generative AI from text of customer reviews

                      Customers say the Milwaukee M18 18-Volt Lithium-Ion High Output batteries deliver impressive power and long runtimes, making them ideal for heavy-duty tools. Users appreciate their compatibility across the Milwaukee tool line and the quick charging capabilities. However, some customers have experienced issues with battery longevity and charging performance over time. Overall, the batteries are viewed as a worthwhile investment for those needing reliable power for demanding tasks.

                      Filter by:
                      Showing 1-10 of 4,415 reviews
                      Honest Review
                      I'd only purchase if it's a significantly discounted price, as the battery capacity diminishes after about three years of occasional to moderate use. It's probably for the best that this battery is being discontinued, as its long-term performance seems unreliable. While the battery might be partially responsible, it's also possible that using the rapid charger frequently reduces the battery's lifespan by shortening its charging cycles for the sake of speed. Disclaimer: To prevent potential garbage truck fires, please do not dispose of this battery in the trash. The truck's compactor could crush the battery in a way that leads to a runaway lithium fire.
                      by
                        Milwaukee XC 6.0Ah Stopped Taking Charge
                        I had this battery for a short time and now it does not take any charge. The charger flashes red and green when putting it on charge and the warranty does not seems to be helpful in this regard.
                        by
                        Response from Customer CareMar 19, 2025
                        Hey, there. Our team will be reaching out to you over email to share your service options for this M18™ REDLITHIUM™ HIGH OUTPUT™ XC6.0 Battery Pack. - Milwaukee Tool, Social Team
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          HD 12.0 Batteries are not reliable
                          I used to only buy Milwaukee, their tools and batteries were extremely reliable. The HD12.0 and 9.0 have been a miss. So far I have 4 - 12.0 batteries that will not work or charge and 2 - 9.0 batteries that have also failed. These batteries will not charge or will charge, indicate that they are full ill load into a tool and die. Id stick to the slim 3.0. I've switched out of Milwaukee as its disappointing to spend several hundred dollars on batteries and have them fail in a couple months.
                          by
                          Response from Milwaukee ToolNov 7, 2024
                          Hello, John. We appreciate you leaving us a review on your M18 High Output 12.0Ah Battery Pack, and we are sorry to hear that your batteries are no longer holding a charge. Please send our team a message at Social.Media@MilwaukeeTool.com, so we can gain a deeper understanding of your situation and assist. - Milwaukee Tool, Social Team
                            2 found this review helpful
                            Juggernaut of a battery
                            Long lasting hard hitting torque and performance!!!
                            by
                              This customer chose to rate the product and not provide text.
                              by
                              • Verified Purchase
                              1 found this review helpful
                              THIS PRODUCT IS AMAZING!!!!!!!!!
                              I use this product on all my my Milwaukee power tools and it’s an out standing on battery pack to get any job you need done without hassle!!!!!
                              by
                                • Recommended
                                Great batteries
                                Great batteries long lasting and lots of power will recommend to anyone working on diesel tractors
                                by
                                • Verified Purchase
                                • Recommended
                                Love these 12ah batteries in all my OPE equipment and heavy duty tools. Can be kind of heavy and bulky for your smaller m18 tools, but when you need the power and run time on more demanding tools theres no better choice. Ive been running 4 12ah batteries for about 3 years now and issues. This 3 pack is a great deal
                                by
                                • Verified Purchase
                                This customer chose to rate the product and not provide text.
                                by
                                • Verified Purchase
                                1 found this review helpful
                                Showing 1-10 of 4,415 reviews