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M12 and M18 12-Volt/18-Volt Lithium-Ion Multi-Voltage Rapid Battery Charger

  • Charges all M18 & M12 Batteries - Full system compatibility
  • 40% faster chargers than standard chargers
  • Fully compatible with the M18 system, featuring over 200+ tools
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Product Overview

The MILWAUKEE M18 & M12 Rapid Charger charges battery packs up to 40% faster, reducing user downtime and maximizing user productivity. The battery charger accepts all Milwaukee M18 and M12 batteries, providing a charging upgrade for both systems. The charger features REDLINK Intelligence and communicates directly with batteries to monitor cell voltage, temperature, and charge status to optimize the performance and extend the life of the pack. As an added level of communication, the charger indicates when the battery reaches an 80% charge, providing users with the confidence that a substantial amount of work can be completed without having to wait for a full charge.

Additional Resources

From the Manufacturer

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Product Height (in.)
Product Length (in.)
6.8 in
Product Width (in.)


Battery Test Function
Charger Included
Charger Included
Color Family
M12 & M18
Cord Length (ft.)
Number of batteries charged at once
Package Quantity
Power Tool Accessory Type
Battery Charger
Tools Product Type
Power Tool
Voltage (volts)

Warranty / Certifications

Certifications and Listings
CSA Listed,ETL Listed,UL Listed

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.7
    out of 384 reviews
  • 90%recommend this product
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Showing 1-10 of 384 reviews
Not sure what’s the problem charger or battery.
I brought weed eater that came with high output XC 8.0 battery and M 12 and M18 charger. I don’t know if it’s battery messing up or charger. Battery dies quicker than when I got it. It also charges way to fast.
    • Recommended
    Rapid Charger
    This charger came with a blower and weed eater combo. I have two other Milwaukee chargers and it charges the same speed as this one.
    • Verified Purchase
    • Recommended
    failed after 4 days
    I bought another after my old on failed. and after 4 days of using the new one. The charger died?!?! what gives, this give me a very different impression of "heavy duty"
    Response from Customer ServiceJan 27, 2022
    Hi! We are sorry to hear that you are not having the best experience with the M18™ & M12™ Rapid Charger. We will email you so we can address your concerns. -Cayla with Milwaukee Tool
      It dose what it says it will do faster charging for your battery
      It dose what it says it will do faster charging for your battery
      • Pro
      • Verified Purchase
      • Recommended
      1 found this review helpful
      This charger charges insanely fast. Definitely recommend this product. I use the circular saw for...
      This charger charges insanely fast. Definitely recommend this product. I use the circular saw for deck building at my small business, it well passes the standard I had thought it would have had.
      • Verified Purchase
      • Recommended
      1 found this review helpful
      I have to admit that the charge time on this was pretty fast. It seemed to be faster than other b...
      I have to admit that the charge time on this was pretty fast. It seemed to be faster than other brand’s battery and charger systems I have used in the past. It does seem to make a buzzing/humming noise while its charging the battery but this isn’t that noticeable unless you’re right next to the charger.
      • DIY
      • Recommended
      Faster Charging for M12 and M18 Batteries!
      I'm really glad Milwaukee is finally in the rapid charger business. It seems like the competition has had an edge in this area for a while, and Milwaukee finally stepped up one of the few areas they were lagging in. Just a quick note up front, this is a SEQUENTIAL charger, not a parallel charger, just like the original M12/M18 multi-voltage charger. If you want a parallel charger, take a look at Milwaukee's new Rapid Charge Station, which is essentially three of these chargers that work in parallel. The form factor of the new rapid charger is almost exactly the same as the original M12/M18 multi-voltage charger. That's good news for anyone who wants to replace their original charger in an M18 tool case - the new rapid charger fits just fine. The keyhole mounts on the back are the same size and spacing as the older model, so if you've got one mounted to the wall already, you can just replace it with the rapid charger without changing out any hardware. The new design has a lot more vent area than the old one, and Milwaukee has moved most of them from the bottom up to the sides, which allows for more airflow. I don't think the charger is actively cooled with a fan though. I can hear a faint hum/whir when I hold it up to my ear while a battery is charging, but I can't feel any forced air coming out of the vents. The rapid charger also has a new LED status indicator in addition to all the old ones. Now there's an 80% charge indication in the form of a flashing green light, which lets you know when you can get a substantial amount of work done with and almost charged battery, in case you're waiting on it for completion of a project. There's also the standard solid red for charging, solid green for charged, flashing red for waiting to charge, fast flashing red for waiting to cool, and flashing green/red for a defective battery. Luckily I've never encountered the last two states. As for faster charge times, I'm getting my 1.5 Ah M12 batteries fully charged in about 22 minutes, which is down from approximately 30 minutes. That's 27% faster, which is close to, but not quite at Milwaukee's "up to 40% faster" claim. Although I wasn't watching the batteries like a hawk, so it's possible it hit the 40% faster target of fully charged at 18 minutes. I checked at 14.5 minutes and it was blinking the 80% status, which is actually right on track for fully charged at 18. The 2Ah M18 battery I tested was fully charged in 25 minutes, and the 4Ah M12 battery was 80% charged at 45 minutes, and fully charged after an hour. Once again, I wasn't sitting at the charger unblinking with a stopwatch, so all times may actually be faster than I reported.
      • Recommended
      11 found this review helpful
      The charger was a great purchase....
      The charger was a great purchase.
      • Verified Purchase
      • Verified Purchase
      Works great and charges multiple size batteries...
      Works great and charges multiple size batteries
      • Verified Purchase
      Showing 1-10 of 384 reviews