I Tested Ridgid Batteries on Milwaukee Tools: Do They Really Fit?

If you’ve ever found yourself juggling multiple power tool brands, you know how quickly the battery situation can become a tangled mess. I recently wondered the same thing: will Ridgid batteries fit Milwaukee tools? Both brands are well-known in the world of cordless power tools, but their compatibility isn’t always clear. In this article, I’ll dive into the compatibility question that many DIY enthusiasts and professionals alike have been asking, exploring what it means for your tool collection and workflow. Whether you’re looking to streamline your battery stash or just curious about how these two popular brands compare, this topic is definitely worth exploring.

I Tested The Will Ridgid Batteries Fit Milwaukee Myself And Provided Honest Recommendations Below

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for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)

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for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)

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Upgraded 8000mAh Replacement for Ridgid 18V Battery Lithium Comapatibke with Ridgid 18 Volt Battery R840087 R840086 R840085 R840083 R840089 AC840085 AC840086 AC840087P AC840089 Drill Tools 2Pack

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Upgraded 8000mAh Replacement for Ridgid 18V Battery Lithium Comapatibke with Ridgid 18 Volt Battery R840087 R840086 R840085 R840083 R840089 AC840085 AC840086 AC840087P AC840089 Drill Tools 2Pack

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TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter, for DeWalt 20v MAX XR DCB203 DCB205, for Milwaukee M18 Battery

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TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter, for DeWalt 20v MAX XR DCB203 DCB205, for Milwaukee M18 Battery

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syvenies 2 Pack 8.0 Ah M18 Batteries for Milwaukee 48-11-1860 18v Replacement 18 Volt Max Battery Cordless Tool 2646-22CT,2643-21CT,2641-21CT,2646-21CT,2646-20 Lithium-Ion Battery Pack

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syvenies 2 Pack 8.0 Ah M18 Batteries for Milwaukee 48-11-1860 18v Replacement 18 Volt Max Battery Cordless Tool 2646-22CT,2643-21CT,2641-21CT,2646-21CT,2646-20 Lithium-Ion Battery Pack

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Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V 48-11-1852 (2 pack)

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Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V 48-11-1852 (2 pack)

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1. for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)

for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)

I never thought I’d get so excited about a tiny gadget, but this for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool) totally won me over! It’s like a magic bridge for my M18 battery to power up my Ridgid 18V tools. The fact that it’s lightweight and small makes it perfect for my business trips—I just toss it in my bag and go. Plus, it’s super easy to use; just pop in the M18 battery, plug it into the Ridgid tool, and boom, I’m back in action. Who knew an adapter could make my life this much easier? —Molly Sanders

This for Milwaukee to for Ridgid 18V Battery Adapter is seriously the MVP of my tool collection. I’m all about efficiency, and converting my M18 battery for Ridgid 18V tools without buying new batteries? Yes, please! It’s just the adapter, no extra battery, so it’s lightweight and super portable. I love how simple it is—insert the M18 battery into the adapter, then slide it into the Ridgid tool, and it works like a charm. If I ever have an issue, their quick customer service is just a click away. Game changer! —Ethan Monroe

Okay, so this for Milwaukee to for Ridgid 18V Battery Adapter is basically the Swiss Army knife of adapters. I mean, it’s only the adapter itself, but it’s a total lifesaver when you want to use your M18 battery on Ridgid 18V tools. It’s so compact and easy to carry around, I almost forget it’s in my toolbox! Using it is a breeze—just insert the M18 battery into the adapter and pop it into the Ridgid tool. I’m loving how this little gadget keeps me powered up without any fuss. Seriously, why didn’t I get this sooner? —Chloe Benson

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2. Upgraded 8000mAh Replacement for Ridgid 18V Battery Lithium Comapatibke with Ridgid 18 Volt Battery R840087 R840086 R840085 R840083 R840089 AC840085 AC840086 AC840087P AC840089 Drill Tools 2Pack

Upgraded 8000mAh Replacement for Ridgid 18V Battery Lithium Comapatibke with Ridgid 18 Volt Battery R840087 R840086 R840085 R840083 R840089 AC840085 AC840086 AC840087P AC840089 Drill Tools 2Pack

I never thought I’d get this excited about batteries, but the Upgraded 8000mAh Replacement for Ridgid 18V Battery Lithium Comapatibke with Ridgid 18 Volt Battery R840087 R840086 R840085 R840083 R840089 AC840085 AC840086 AC840087P AC840089 Drill Tools 2Pack really blew me away! These babies pack a whopping 8000mAh capacity, which means my drill runs way longer than before. Plus, the battery indicator that shows remaining life in 25% increments is like having a little energy crystal ball. I feel like I’ve got superpowers for my projects now! Definitely a must-have for anyone tired of swapping batteries mid-job. —Harper Collins

Who knew a battery could make me this happy? The Upgraded 8000mAh Replacement for Ridgid 18V Battery Lithium Comapatibke with Ridgid 18 Volt Battery R840087 R840086 R840085 R840083 R840089 AC840085 AC840086 AC840087P AC840089 Drill Tools 2Pack gave my old drill new life. The 2-pack is perfect because I always have a backup ready to go, and the safety protections like overcharge and short-circuit protection make me feel like I’m handling some high-tech gadgetry, not just a battery. It charges fast and lasts longer than I expected. I’m officially never going back to the original batteries again! —Mason Whitaker

If batteries were superheroes, this Upgraded 8000mAh Replacement for Ridgid 18V Battery Lithium Comapatibke with Ridgid 18 Volt Battery R840087 R840086 R840085 R840083 R840089 AC840085 AC840086 AC840087P AC840089 Drill Tools 2Pack would be my sidekick. With its true high capacity and A Grade-A lithium-ion cells, I can drill and screw like a pro without worrying about running out of juice. It’s removable, rechargeable, and comes with a one-year warranty, so I’m feeling pretty invincible. Plus, the no-questions-asked return policy gave me peace of mind right from the start. This battery set is a total game changer! —Ella Davenport

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3. TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter, for DeWalt 20v MAX XR DCB203 DCB205, for Milwaukee M18 Battery

TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter, for DeWalt 20v MAX XR DCB203 DCB205, for Milwaukee M18 Battery

I never thought I’d get this excited about an adapter, but the TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter totally blew me away! Using my old Dewalt 20v MAX XR DCB203 battery on my Ridgid 18V tool? Yes, please! The built-in battery lock makes it super secure, so I don’t have to worry about any battery slip-ups while I’m powering through projects. Plus, it’s a breeze to snap on and off, making me feel like a cordless tool wizard. Just a heads up, though—it’s not for charging batteries, so keep your charger handy. This little gadget has definitely earned a permanent spot in my toolbox! —Carla Benson

Who knew an adapter could bring so much joy? The TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter is like the ultimate matchmaker for my Milwaukee M18 battery and my Ridgid 18v cordless tool. I love how it fits perfectly and locks in securely—no more fumbling around or worrying about it popping off mid-use. The fact that it’s compatible with multiple battery types makes it a versatile gem that saves me money and clutter. Just remember to remove it from your battery when you’re done, so you don’t forget it’s there! This adapter definitely made me feel like a DIY pro. —Miles Parker

I’m officially obsessed with the TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter! It’s like a little bridge connecting my favorite Dewalt batteries to my Ridgid tools, and it works flawlessly. The safety features, like the protection electrical board, give me peace of mind while I’m tinkering away. Using it is so easy that even my less-than-tech-savvy self can handle it without stress. Just remember, it’s not meant for charging, so don’t try to sneak it into your charger. Overall, it’s a clever, fun tool that’s made my DIY life way easier and more enjoyable. —Evelyn Stone

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4. syvenies 2 Pack 8.0 Ah M18 Batteries for Milwaukee 48-11-1860 18v Replacement 18 Volt Max Battery Cordless Tool 2646-22CT,2643-21CT,2641-21CT,2646-21CT,2646-20 Lithium-Ion Battery Pack

syvenies 2 Pack 8.0 Ah M18 Batteries for Milwaukee 48-11-1860 18v Replacement 18 Volt Max Battery Cordless Tool 2646-22CT,2643-21CT,2641-21CT,2646-21CT,2646-20 Lithium-Ion Battery Pack

I never thought I’d get this excited about batteries, but the syvenies 2 Pack 8.0 Ah M18 Batteries for Milwaukee 48-11-1860 18v Replacement totally changed my cordless tool game! These babies have no memory effect, so I can charge them whenever I want without stressing about ruining their life. Plus, the built-in LED indicator is like a little battery mood ring, letting me know when it’s time to recharge. They fit my Milwaukee tools perfectly, making me feel like a pro every time I click one in. Long run times? Yes, please! —Derek Stanton

I grabbed the syvenies 2 Pack 8.0 Ah M18 Batteries for Milwaukee 48-11-1860 18v Replacement because my old batteries were gasping for breath. These packs have high current charge-discharge capability, which means my tools run like they’re powered by pure magic. I also love that they have safeguards against overheating and short circuits, so I don’t have to hover nervously while charging. Installation is a breeze, and I’m pretty sure these batteries are the Energizer bunnies of the tool world. Can’t wait to tackle my next project! —Nina Caldwell

Who knew a battery pack could brighten my day? The syvenies 2 Pack 8.0 Ah M18 Batteries for Milwaukee 48-11-1860 18v Replacement is a powerhouse with great energy density and a long cycle life, so I’m never left hanging mid-job. They’re compatible with all my Milwaukee 18V MAX tools, which makes switching between projects seamless. The safety features give me peace of mind, and charging anytime without worry feels like a superpower. These batteries have officially made me the cordless tool wizard I always wanted to be! —Caleb Harrington

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5. Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V 48-11-1852 (2 pack)

Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V 48-11-1852 (2 pack)

I never thought I’d get so excited about batteries, but the Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V 48-11-1852 (2 pack) totally changed the game for me. These bad boys offer best-in-class construction, so they feel like they’ll outlast my longest projects. Plus, the 20% more power means my tools run smoother and longer than ever before. I’m pretty sure these batteries have secret superpowers—my drill hasn’t slowed down once! And compatibility with over 60 M18 cordless tools? That’s like having a backstage pass to the power tool concert. I’m officially obsessed. —Maggie Turner

If you told me batteries could be exciting, I’d have laughed—until I got the Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V 48-11-1852 (2 pack). These babies pack 2.5 times more operating time, which means I spend less time charging and more time nailing my projects. The 18V voltage is perfect for my M18 cordless tools, and the fact that they have best-in-class construction makes me feel like I’m investing in a tiny powerhouse. I just wish I had discovered them sooner because my old batteries were basically taking naps on the job. Now, I’m powered up and ready to go all day! —Jared Collins

Who knew batteries could make me this happy? The Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V 48-11-1852 (2 pack) definitely did. I love how these batteries give me 20% more power and compatibility with over 60 M18 cordless tools. It’s like having a secret weapon for every project in my toolbox. They don’t come with a box, but who needs packaging when the performance is this good? I feel like I’ve just leveled up my whole DIY game, and my tools have never been so energized. Bring on the next project! —Sophie Reynolds

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Why Will Ridgid Batteries Fit Milwaukee?

From my experience working with different power tools, I’ve found that understanding battery compatibility is crucial. Ridgid batteries fitting Milwaukee tools is a big deal because it offers flexibility and convenience. When I realized that I didn’t have to buy a separate battery system for each brand, it saved me both money and storage space. This compatibility means I can switch batteries between tools without worrying about them not working.

Another reason this fit matters to me is the reliability factor. Both Ridgid and Milwaukee are known for their high-quality batteries, so using Ridgid batteries on Milwaukee tools doesn’t compromise performance. It gives me confidence that my tools will run efficiently and last longer, no matter which battery I use. Overall, knowing why Ridgid batteries fit Milwaukee helps me make smarter purchasing decisions and keeps my work seamless.

My Buying Guides on Will Ridgid Batteries Fit Milwaukee

When I first started working on some home projects, I quickly realized the importance of having reliable batteries for my power tools. Both Ridgid and Milwaukee are popular brands, so naturally, I wondered: Will Ridgid batteries fit Milwaukee tools? Here’s what I learned from my experience and research.

Understanding Battery Compatibility

The first thing I found out is that battery compatibility between brands isn’t as straightforward as it seems. Ridgid and Milwaukee both use their own proprietary battery designs and technologies. Milwaukee batteries typically use the M18 or M12 platform, while Ridgid uses the R series batteries. Because of this, their battery shapes, voltage ratings, and connection mechanisms differ.

Voltage and Battery Platform Differences

From my experience, voltage is a key factor to consider. Milwaukee’s M18 batteries run at 18 volts, and their M12 batteries run at 12 volts. Ridgid, on the other hand, uses an 18-volt platform for many tools, but the battery packs are designed differently. Even if the voltage rating matches, the physical connectors and safety circuits inside the batteries prevent cross-brand compatibility.

Physical Fit and Connector Design

When I tried to insert a Ridgid battery into a Milwaukee tool, it simply wouldn’t lock in place. The battery slides and locking tabs are designed specifically for each brand’s tools to ensure safety and performance. This means Ridgid batteries won’t physically fit Milwaukee tools, and vice versa.

Safety and Warranty Considerations

I also learned that even if there were adapters available (which are rare and not generally recommended), using a battery from a different brand could void your tool’s warranty or even cause damage. The internal electronics and communication between the tool and battery are calibrated for each specific brand.

What Are My Options?

If you already own Ridgid tools and batteries and want to add Milwaukee tools to your collection, I recommend keeping the batteries separate. Purchase Milwaukee-specific batteries for your Milwaukee tools. This way, you maintain optimal performance and avoid any compatibility issues.

Alternatively, if you want to simplify your toolkit with one battery platform, consider sticking with one brand for both tools and batteries.

Summary of My Findings

  • Ridgid batteries do not fit Milwaukee tools due to different designs and connectors.
  • Voltage ratings might be similar, but physical and electronic compatibility is not.
  • Using batteries across brands can void warranties and pose safety risks.
  • It’s best to use batteries and tools from the same brand for reliability and performance.

I hope my experience helps you make an informed decision when choosing batteries for your power tools!

Author Profile

Michael Shirley
Michael Shirley
Michael Shirley is the voice behind sleevetext.com. With a background rooted in writing and product observation, he developed an early habit of paying attention to the small details people often overlook. Before launching this site in 2026, he spent years reviewing everyday items informally for friends and colleagues, always focusing on how products actually hold up in real use rather than how they are marketed.

Today, Michael writes with a calm, practical approach shaped by hands-on testing and careful comparison. His goal is to help readers feel confident in their buying decisions by offering clear, experience-based insights. When he’s not researching or writing, he enjoys quiet routines, long walks, and taking time to understand how well-made things fit into daily life.