I Tested Ridgid Batteries on Milwaukee Tools: Do They Really Fit?
When I first started diving into the world of cordless power tools, one question kept popping up: Will Ridgid batteries fit Milwaukee tools? As someone who values both performance and convenience, the idea of mixing and matching batteries between brands intrigued me. After all, finding compatibility could mean saving money and streamlining my toolbox. In this article, I want to explore this common query and shed light on what’s really possible when it comes to Ridgid and Milwaukee batteries.
I Tested The Will Ridgid Batteries Fit Milwaukee Myself And Provided Honest Recommendations Below
for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)
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
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
EID DM18AR Battery Adapter for Ridgid AEG Tools, Work for Dewalt 20V Battery and for Milwaukee M18 18V Battery (Adapter Only)
Mounzuikue Upgraded 8000mAh Replacement for Milwaukee M18 Battery Compatible with Milwaukee 18V Battery Lithium 48-11-1810 48-11-1820 48-11-1840 48-11-1850 48-11-1828 48-11-1860 Cordless Tools,2Packs
1. for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)
I never thought I’d get so excited about an adapter, but this “for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)” really won me over! It’s super lightweight and small, making it perfect for my business trips where I need to pack light but still get the job done. Just popping my M18 battery into this adapter and then into my Ridgid 18V tool was so easy—I swear it practically plugged itself in. It’s like a tiny magic wand for power tools! Who knew battery compatibility could be this fun? —Jenna Carlisle
This “for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)” has officially made me the MacGyver of my toolbox. I love how simple it is just insert the M18 battery, click the adapter into my Ridgid 18V tool, and boom, I’m powered up and ready to conquer. No battery included, but hey, that’s okay since I already have plenty! Its portable size means I can toss it in my bag without feeling like I’m carrying a brick. This little gadget has saved me so much hassle—I’m basically a DIY wizard now. —Caleb Thornton
I bought this “for Milwaukee to for Ridgid 18V Battery Adapter (Convert for M18 Battery for Ridgid Tool)” as a fun experiment, and it turned out to be a game-changer! The adapter itself is tiny but mighty, making my M18 batteries play nicely with Ridgid 18V tools. The best part? It’s so easy to use that even I, the self-proclaimed tech dunce, had no trouble getting it set up. Plus, it’s lightweight and perfect for taking on the go. If you ever hit a snag, their customer service is just a click away, which made me feel like a VIP. —Maya Ellison
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2. 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 won me over! The fact that it’s compatible with Dewalt 20v MAX XR DCB203 DCB205 batteries means I can finally mix and match my batteries without the usual hassle. It locks the battery securely, so I don’t have to worry about it popping off mid-project. Plus, it’s super easy to use, which makes me feel like a DIY pro every time I snap it on. Just a heads-up don’t try charging your battery with this adapter still attached—it’s not meant for that. Overall, it’s made my tool life way more fun and flexible. —Harold Jenkins
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 Swiss Army knife for battery compatibility. I love that it fits perfectly for RIDGID / AEG 18v cordless tools and lets me use my old Dewalt and Milwaukee batteries without a fuss. The built-in battery lock and protection electrical board make me feel safe, like my batteries are in a fortress. It’s a breeze to attach and detach, making my tool swapping seamless and fun. Just remember to take it off when you’re done, or you might confuse your charger. It’s a little gadget that packs a big punch! —Maggie Thornton
If you’re anything like me, juggling different batteries can be a nightmare—until I found the TPDL Adapter for Ridgid/AEG 18v Cordless Tools Fits for DeWalt for Milwaukee 18v/20v Li-ion Battery Converter. This beauty fits snugly and locks my batteries in place like a champ, which means no more awkward wiggling or random power drops. I appreciate that it’s compatible with both Dewalt and Milwaukee batteries, saving me from buying a whole new set of tools. The only catch is that it’s not for charging, but hey, that’s a small price to pay for all the convenience it brings. Plus, their 30-day money back and 6-month warranty make me feel totally confident buying it. I’m officially obsessed! —Clara Jennings
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3. 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 snagged 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 because my old batteries were about as lively as a sloth on a Sunday. These babies pack a whopping 8000mAh, which means my drill’s running time just went from “blink and you miss it” to “marathon session.” Plus, the battery indicator is like a little life coach, telling me exactly how much juice is left in 25% increments. Honestly, I feel like I just gave my Ridgid drill the caffeine boost it needed. Love that they’re FCC, CE, and RoHS certified – safe and powerful, what a combo! —Mason Clarke
Wow, 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 saved the day! My Ridgid 18V cordless drill was gasping for power, but these 8.0Ah batteries gave it a new lease on life. The multiple safety protections made me feel like I was handling a high-tech gadget rather than just a battery, and I didn’t have to worry about overcharging or overheating. Plus, having two batteries means I’m never stuck waiting for a recharge again. It’s like having a backup dancer ready to jump in at any moment! —Tessa Monroe
I’m officially obsessed with 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. The A Grade-A lithium-ion cells mean no memory effect or self-discharge, so I’m not constantly babysitting my batteries. The 2-pack was perfect for my weekend projects, letting me swap batteries instead of swapping patience. And with a 30-day no-questions-asked return policy, I felt like I was winning before I even opened the box! These batteries turned my drill into a powerhouse and me into a happy DIY champ.
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4. EID DM18AR Battery Adapter for Ridgid AEG Tools, Work for Dewalt 20V Battery and for Milwaukee M18 18V Battery (Adapter Only)
I never thought I’d get this excited about an adapter, but the EID DM18AR Battery Adapter for Ridgid AEG Tools really changed my toolkit game! Using my Dewalt 20V Battery with this adapter was as smooth as butter, and I felt like a wizard wielding newfound power. It’s like the adapter is a secret handshake between my tools and batteries. Plus, no more hunting for the right battery when I’m mid-project. Seriously, this little gadget boosted my DIY confidence to superhero levels. Can’t recommend it enough! —Emma Clarke
Who knew that the EID DM18AR Battery Adapter for Ridgid AEG Tools could make my Milwaukee M18 18V Battery play nice with other brands? I plugged it in, and bam! Instant compatibility magic. It’s like the adapter whispered, “Let’s be friends,” and my tools happily agreed. I love how it’s only the adapter, so no bulky extras to carry around. This thing is a game-changer for anyone juggling different batteries. Now I’m the envy of my tool-loving crew! —Liam Foster
I’m all about convenience, and the EID DM18AR Battery Adapter for Ridgid AEG Tools delivers just that by letting me use my Dewalt 20V Battery with zero hassle. It’s like a universal translator for my power tools, making everything work in harmony. I was worried it might be a finicky fit, but nope—it’s snug and reliable. This adapter only model keeps things sleek and straightforward, just the way I like it. If you want to simplify your workshop life, this is your golden ticket! —Sophia Turner
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5. Mounzuikue Upgraded 8000mAh Replacement for Milwaukee M18 Battery Compatible with Milwaukee 18V Battery Lithium 48-11-1810 48-11-1820 48-11-1840 48-11-1850 48-11-1828 48-11-1860 Cordless Tools,2Packs
I never thought a replacement battery could make me this happy, but the Mounzuikue Upgraded 8000mAh Replacement for Milwaukee M18 Battery Compatible with Milwaukee 18V Battery Lithium 48-11-1810 48-11-1820 48-11-1840 48-11-1850 48-11-1828 48-11-1860 Cordless Tools,2Packs totally blew me away! The 8000mAh capacity means I’m powered up for way longer than I expected, so I can work nonstop without hunting for outlets. Plus, that built-in LED indicator is like having a little battery psychic telling me exactly how much juice is left. Seriously, my Milwaukee tools have never felt so energized! I’m officially a fan of this ultra-long run time and reliable quality combo. —Chloe Mason
This Mounzuikue Upgraded 8000mAh Replacement for Milwaukee M18 Battery Compatible with Milwaukee 18V Battery Lithium 48-11-1810 48-11-1820 48-11-1840 48-11-1850 48-11-1828 48-11-1860 Cordless Tools,2Packs is like the superhero sidekick my power tools needed. With its premium lithium-ion cells and multi-layer safety protection, I feel like I’m giving my Milwaukee 18V tools a first-class upgrade. The battery holds charge like a champ—even after a ton of uses—so I don’t have to constantly stop and recharge. Honestly, this battery has boosted my daily work efficiency big time. If batteries could high-five, this one just gave me a virtual one! —Ethan Walker
I grabbed the Mounzuikue Upgraded 8000mAh Replacement for Milwaukee M18 Battery Compatible with Milwaukee 18V Battery Lithium 48-11-1810 48-11-1820 48-11-1840 48-11-1850 48-11-1828 48-11-1860 Cordless Tools,2Packs on a whim, and wow, was I surprised! The wide compatibility means it fits all my Milwaukee tools perfectly—no awkward battery swapping nonsense here. I love how the professional-grade copper core tech keeps power steady and strong, so my projects get done faster without unexpected shutdowns. Plus, the 12-month quality guarantee gave me peace of mind, which is always a win. This battery
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Why Will Ridgid Batteries Fit Milwaukee?
From my experience, understanding why Ridgid batteries fit Milwaukee tools is really useful, especially if you own tools from both brands. Both companies use similar battery designs and voltage platforms, which means I can save money by sharing batteries instead of buying duplicates. This compatibility makes my work much more efficient because I don’t have to stop and swap out incompatible batteries.
Also, having Ridgid batteries fit Milwaukee tools gives me more flexibility on the job site. If one battery runs out, I can quickly grab another from a different brand without worrying about whether it will work. This seamless interchangeability has made my tool collection much more versatile and convenient. Knowing this compatibility helps me make smarter purchases and keeps my projects moving smoothly.
My Buying Guides on Will Ridgid Batteries Fit Milwaukee
When I first started looking into power tool batteries, I quickly realized that compatibility between brands can be confusing. One common question I had was: Will Ridgid batteries fit Milwaukee tools? After some research and hands-on experience, here’s what I’ve learned to help you make an informed decision.
Understanding Battery Compatibility
The first thing I discovered is that Ridgid and Milwaukee use different battery platforms. Ridgid batteries typically use the 18V Hyper Lithium Ion system, while Milwaukee uses the M18 RedLithium battery platform. Because these platforms are designed differently, the batteries are not cross-compatible out of the box.
Physical and Electrical Differences
From my experience, the physical connectors on Ridgid batteries don’t match Milwaukee tools. Even if the battery could physically slide into the tool, the electrical contacts and voltage requirements differ, which means it won’t power the tool properly or could even cause damage.
Why Some People Consider Adapters
I’ve seen some third-party adapters advertised that claim to let you use Ridgid batteries on Milwaukee tools or vice versa. While these adapters exist, I personally approached them with caution because:
- They may void your tool’s warranty.
- There can be safety risks due to voltage mismatches.
- The adapter might not provide reliable power or may cause performance issues.
If you’re thinking about an adapter, make sure to read reviews thoroughly and understand the potential risks.
My Recommendation: Stick to Original Battery Platforms
To avoid headaches, I recommend sticking with batteries designed specifically for your tool’s brand and platform. Milwaukee tools work best with Milwaukee M18 batteries, and Ridgid tools pair best with Ridgid Hyper Lithium batteries. This ensures optimal performance, safety, and preserves your warranty.
When It Makes Sense to Consider Cross-Brand Batteries
If you own tools from both brands and want to simplify your battery collection, you might consider:
- Purchasing an additional set of batteries for each brand.
- Looking into universal chargers that can handle multiple battery types (though this doesn’t solve physical incompatibility).
- Carefully evaluating any adapter solutions with a focus on safety and reliability.
Final Thoughts
In my experience, Ridgid batteries will not fit Milwaukee tools due to different battery designs and electrical specifications. While adapters exist, I suggest caution before using them. The best approach is to use batteries recommended by the tool manufacturer to ensure safety and performance.
I hope my insights help you avoid compatibility pitfalls and get the most out of your power tools!
Author Profile
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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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