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M12 12-Volt Lithium-Ion Cordless Power Source (Tool-Only)

  • 2.1-amp powered USB port charges all portable electronic devices
  • Powers All M12 Heated Gear
  • Compatible With All M12 Batteries
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Product Overview

The M12 Power Source, compatible with all M12 Battery Packs, features a 2.1-amp powered USB port that charges tablets, smart phones, mp3 players, and other portable electronic devices. This smart-charge port identifies the electronic device being charged; delivering fast, safe charging. The adapter features an on-board fuel gauge, and is compatible with all M12 Heated Gear, providing up to 6 hours of continuous heat on a single charge. (Battery sold separately).

Additional Resources

From the Manufacturer

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Actuated Tool Type
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Tools Product Type
Power Tool

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Customer Reviews

  • 4.1
    out of 142 reviews
  • 77%recommend this product
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Showing 1-10 of 142 reviews
Purchased the Milwaukee Cordless Power Source as a backup power source using the extra 12v batter...
Purchased the Milwaukee Cordless Power Source as a backup power source using the extra 12v battery that came with my Milwaukee Power Ratchet. Hooked up my cable and battery and I have back up power for my iPhone and iPad. Works great very satisfied with the power. Simple to use Highly recommend.
  • Verified Purchase
  • Recommended
Great product "IF"! This is a great product if you already have the battery and charger from yo...
Great product "IF"! This is a great product if you already have the battery and charger from your Milwaukee tools. I have been looking for a battery pack to carry with me during the day to charge my cell phone and tablet. After seeing a video on YouTube I did my research and this fit the build! I already had a few tools, M12 batteries and a charger so I basically have a battery charger for $30! My only complaint is this unit doesn't charge the battery, you have to use your normal battery charger that comes with any Milwaukee tool set. (Not a bare tool). I also purchased a very short phone cord to reduce bulk while carrying, 12" on Amazon. I have had no problem in the few weeks I have began using it.
  • Verified Purchase
  • Recommended
1 found this review helpful
M12 Power Source
pretty sweet device ! Charges my iPhone6 twice, and the M12 batteries go with my M12 power tools so makes my life a lot easier so i can interchange the batteries. Instead of carrying different kinds. CON-another USB. But main purpose is for the jacket so, that's my next buy.
    • Recommended
    2 found this review helpful
    Heated jacket shorted out 2 m12 power sources
    I bought my jacket and has worked great for 3 years but recently the jacket started to heat the pockets even when turned off but randomly one day the power source the battery goes into stopped working so I got a second one and right away that power source stopped too no lights with a full battery in it i at first thought it was the power source but must be the jackets fault is there anything Milwaukee can do regarding the 2 power sources
    Response from Customer ServiceApr 5, 2022
    Hi Gabe! Thank you for telling us about your experience with the M12™ Power Source. We will send you a follow-up email with additional questions, so we can gain more information. -Cayla with Milwaukee Tool
      Faulty battery pack
      I just took my jacket and battery pack out after two years. The batteries I have are fully charged and work great in my drill but, will not wok with pack light shows no charge and usb does not work. I would like to know if you have done anything about this problem. Every review I’ve read says the same thing. I would like to use my jacket and portable power source. Is there a recall or something? Please respond promptly. I would not recommend this to anyone at this point.
      Response from Customer ServiceApr 1, 2022
      Hello! Thank you for your review on the M12™ Power Source. We will email you shortly to address this. -Cayla with Milwaukee Tool
        • Verified Purchase
        Save your money. I have bought 2 of these both failed after the first day of use.
        Response from Milwaukee ToolMar 8, 2022
        Hi Evan, we would like to further understand your feedback on the M12 12V Lithium-Ion Cordless Power Source. Please email us at socialmedia@milwuakeetool.com so we can assist. -Cayla with Milwaukee Tool
        • Verified Purchase
        M12 Power Source for Heated Coat Problem
        My batteries work fine, but when installed in my heated coat the power source doesn't distribute power out. I've read several online reviews and many have had the same experience. Please contact me for assistance. Thanks
          This is a perfect gadget for when electricity goes out!!! I...
          This is a perfect gadget for when electricity goes out!!! I can charge my phone and other small electronics with ease. Love it.
          • Verified Purchase
          The M12 power source is a failure
          I bought an M12 jacket a few years ago. I tried to charge it and the Milwaukee 48-59-1201 M12 compact charger wouldn't work. I purchased a new one and it failed in 5 minutes. I purchased another one and it failed in a few minutes. Foolishly, I bought another and it failed in a minute. Now I cannot use the jacjket with a battery. Evidently the battery pack is not properly engineered. Don't buy a replacement Milwaukee 48-59-1201 M12 compact charger, they fail in minutes!
            Showing 1-10 of 142 reviews