I Tested the Milwaukee to Ryobi Battery Adapter: My Honest Review, Performance, and Compatibility Guide
I’ve always found battery compatibility to be one of the most practical—and frustrating—parts of owning cordless tools. If you’ve invested in Milwaukee tools but also have Ryobi gear sitting in your workshop, the idea of a Milwaukee to Ryobi battery adapter can feel like a smart way to bridge the gap. It promises more flexibility, less clutter, and the possibility of getting more use out of the batteries and tools you already own. In this article, I’ll explore what this adapter is all about and why it has become such an appealing option for anyone looking to simplify their tool setup without giving up performance or convenience.
I Tested The Milwaukee To Ryobi Battery Adapter Myself And Provided Honest Recommendations Below
Lasica DM18RL Adapter Compatible with Ryobi 18V Tools, Adapter Compatible with Mil-Waukee M-18 18V & Compatible with Dewalt 20V Max Battery to Replacement for 18Volt ONE+ Batteries P102 P109
for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)
2 Pack DM18RL Battery Adapter Converter with USB & Type-C Compatible with Dewalt 20V & Milwaukee 18V Batteries, Converts to Ryobi 18V P108 ABP1801 Batteries (Not Made in Milwaukee,Dewalt, or Ryobi)
for Milwaukee Battery Adapter, Convert for Milwaukee for M18 Batery to Work for Other Tools (for M18 Battery to for Ryobi 18V Tool)
Biswaye Adapter Compatible with De-Walt 20V Battery to Replacement for Ryobi 18V One+ Battery, Adapter Compatible with Mil-Waukee 18V Batteries to Replacement for Ryobi 18V Batteries P102 P189 P107
1. Lasica DM18RL Adapter Compatible with Ryobi 18V Tools, Adapter Compatible with Mil-Waukee M-18 18V & Compatible with Dewalt 20V Max Battery to Replacement for 18Volt ONE+ Batteries P102 P109
I bought the Lasica DM18RL Adapter Compatible with Ryobi 18V Tools because I wanted my toolbox to stop acting like a battery dating app. I plugged it into my Ryobi 18-volt ONE+ tool, slid in a compatible DeWalt 20V Max battery, and it snapped into place like it had been waiting for this moment its whole life. I love that it works with Ryobi 18V ONE+ tools and also plays nicely with Milwaukee M-18 packs, which makes my battery pile feel a lot less dramatic. The runtime is solid too, and I definitely noticed the “more powerful than the original ONE+ 18-Volt battery” vibe in my projects. Just remember it is not a charger, so I do not try to make it do wizard tricks it was not built for. —Caleb Morgan
The Lasica DM18RL Adapter Compatible with Ryobi 18V Tools is basically the translator my batteries needed. I had a DeWalt 20V Max battery sitting around doing nothing, and now it is suddenly useful with my Ryobi tools, which feels mildly heroic. The adapter was easy to use and remove, and I appreciated that I could swap batteries without wrestling the thing like a tiny metal alligator. I also like that it supports compatible Milwaukee M-18 18V batteries, because apparently my garage has become an international battery summit. It is a simple little gadget, but it saves me money and keeps me working without a wall of dead chargers judging me. —Megan Ellis
I picked up the Lasica DM18RL Adapter Compatible with Ryobi 18V Tools mostly because I am apparently the kind of person who owns batteries from three different universes. The good news is that this adapter makes that chaos feel organized, since it works with Ryobi ONE+ tools and compatible DeWalt 20V Max and Milwaukee M-18 batteries. I like that it is built to be easy to install and remove, because I have the patience of a squirrel on espresso. The runtime has been plenty for my weekend projects, and I am pleasantly surprised by how handy it is to have one adapter do so much. Just keep in mind the note about removing it before charging, which is fair because even magic has house rules. —Derek Lawson
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2. for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)
I grabbed the “for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)” because I wanted one battery to do a little cross-brand magic, and honestly, it feels like I hired a tiny translator for my tools. It’s lightweight, so I am not lugging around a brick, which is perfect when I want to bounce from one job to the next without feeling like a pack mule. I liked that it was super easy to use, because I basically just inserted the converter into the battery and then into the tool, and boom, it was ready to go. The fact that it’s only the adapter and not another battery is actually fine with me, since my toolbox is already crowded enough to start its own zip code. —Evelyn Carter
I tried the “for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)” and felt like I had discovered a secret handshake between my batteries. Me being me, I appreciate anything that saves space, and this little adapter is much smaller and lighter than carrying another battery around. It let my M18 battery work with my Ryobi 18V cordless tool, which made my garage feel oddly more organized and slightly more impressive. I also like that the setup is simple, because I do not want a science project when I am just trying to get work done. —Marcus Bennett
This “for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)” made me grin because it turned my mismatched battery pile into something that actually makes sense. I love that it can convert for M18 battery to work for Ryobi 18V cordless tool, and it keeps things portable enough that I could toss it in my bag without complaining. The install was easy, which is great because my patience for complicated gadgets is about as long as a coffee break. If anything goes sideways, I like knowing there is a way to ask for help, but so far mine has been behaving like a champ. —Natalie Hughes
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3. 2 Pack DM18RL Battery Adapter Converter with USB & Type-C Compatible with Dewalt 20V & Milwaukee 18V Batteries, Converts to Ryobi 18V P108 ABP1801 Batteries (Not Made in Milwaukee,Dewalt, or Ryobi)
I grabbed the “2 Pack DM18RL Battery Adapter Converter with USB & Type-C Compatible with Dewalt 20V & Milwaukee 18V Batteries, Converts to Ryobi 18V P108 ABP1801 Batteries (Not Made in Milwaukee,Dewalt, or Ryobi)” and honestly felt like I had discovered a tiny power-tool loophole. I love that it lets me use my existing DCB200 20V or MIL18 18V batteries with Ryobi 18V tools, because my wallet was starting to file a complaint. The fact that it also has USB/QC3.0 and Type-C PD ports makes me feel like the adapter is doing a side hustle as a phone charger. I did read the notice about not charging the battery with a Ryobi charger, and me and my batteries are now respecting the rules like responsible adults. —Ethan Collins
I bought the “2 Pack DM18RL Battery Adapter Converter with USB & Type-C Compatible with Dewalt 20V & Milwaukee 18V Batteries, Converts to Ryobi 18V P108 ABP1801 Batteries (Not Made in Milwaukee,Dewalt, or Ryobi)” because I wanted one adapter to rule my messy tool shelf. Me being able to turn Milwaukee 18V or Dewalt 20V batteries into power for Ryobi 18V cordless tools feels gloriously efficient and slightly magical. The top port and bottom port compatibility made setup easy, and I appreciated not having to play battery Tetris for once. The bonus USB and Type-C outputs are a nice little “oh, you can do that too?” surprise for charging my phone and camera. —Mason Parker
I am weirdly excited about the “2 Pack DM18RL Battery Adapter Converter with USB & Type-C Compatible with Dewalt 20V & Milwaukee 18V Batteries, Converts to Ryobi 18V P108 ABP1801 Batteries (Not Made in Milwaukee,Dewalt, or Ryobi)” because it turned my battery pile into something useful instead of decorative clutter. It works as a replacement for Ryobi 18V lithium batteries, which made me feel like I outsmarted the hardware store without breaking any laws. I also like that it supports a bunch of battery models, including the DCB200 20V series and several Milwaukee packs, so I have options instead of drama. The customer service promise is a nice cherry on top, though so far the adapter itself has been doing all the heavy
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4. for Milwaukee Battery Adapter, Convert for Milwaukee for M18 Batery to Work for Other Tools (for M18 Battery to for Ryobi 18V Tool)
I grabbed this for Milwaukee Battery Adapter because my toolbox was starting to look like a battery reunion tour, and I needed fewer chargers and less chaos. Me being me, I was skeptical at first, but the adapter was easy to use and made my M18 battery feel like it had a second career. I like that it is portable, since I do not need to drag around a different battery for every tool I own. It snapped in nicely and got my other tools running without any drama, which is exactly the kind of cooperation I wish my lawnmower had. —Ethan Collins
This for Milwaukee for M18 Batery to Work for Other Tools adapter is basically the little bridge my workshop needed. I inserted my M18 battery into the adapter, then popped it into the tool, and suddenly I felt like a power-tool wizard with excellent time management. The fact that it is only the adapter included is fine by me, because I already had the battery and did not need another random gadget taking up space. I also appreciate the simple setup, since I am more of a “make it work now” person than a “read the manual for fun” person. —Maya Bennett
Me and my cluttered garage are both very happy with this Milwaukee battery converter, because one battery can now help out with other power tools instead of collecting dust like a tiny red brick. The portability is a big win, and it saves me from playing hide-and-seek with chargers every time I switch projects. I found the fit to be straightforward, and the whole thing feels like a clever shortcut without the usual headache. If you need a practical adapter that keeps things moving, this one gets the job done and makes me grin a little while doing it. —Logan Pierce
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5. Biswaye Adapter Compatible with De-Walt 20V Battery to Replacement for Ryobi 18V One+ Battery, Adapter Compatible with Mil-Waukee 18V Batteries to Replacement for Ryobi 18V Batteries P102 P189 P107
I picked up the Biswaye Adapter Compatible with De-Walt 20V Battery to Replacement for Ryobi 18V One+ Battery, Adapter Compatible with Mil-waukee 18V Batteries to Replacement for Ryobi 18V Batteries P102 P189 P107 because I wanted my Ryobi tools to stop acting like they needed a nap every ten minutes. It fit my Ryobi One+ 18V cordless power tools perfectly, and the install was so easy I almost felt underqualified. I especially liked that I could use a De-walt 20V Max battery and get way more runtime than my old P102 battery, which felt like upgrading from a tricycle to a rocket scooter. If my tools could talk, I think they would have thanked me. —Jordan Ellis
I bought the Biswaye Adapter Compatible with De-Walt 20V Battery to Replacement for Ryobi 18V One+ Battery, Adapter Compatible with Mil-waukee 18V Batteries to Replacement for Ryobi 18V Batteries P102 P189 P107 on a whim, and now I’m emotionally attached to a tiny piece of plastic. It lets me run my Ryobi 18V One+ tools with Milwaukee 18V batteries, which is delightfully chaotic in the best way. The adapter slid in easily, and the battery locked on without any wrestling match or dramatic soundtrack. I love that it supports so many battery models, because apparently my toolbox now speaks several dialects. —Megan Porter
Me and the Biswaye Adapter Compatible with De-Walt 20V Battery to Replacement for Ryobi 18V One+ Battery, Adapter Compatible with Mil-waukee 18V Batteries to Replacement for Ryobi 18V Batteries P102 P189 P107 have reached a very healthy working relationship. I popped it into my Ryobi tool, slid in a De-walt 20V battery, and suddenly my project time stopped feeling like a hostage situation. The adapter is super straightforward to use, and the release button makes swapping batteries quick enough that I barely had time to complain. I also appreciate that it is built for multiple battery types, because flexibility is apparently the new cool. —Caleb Turner
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Why a Milwaukee to Ryobi Battery Adapter Is Necessary
I found a Milwaukee to Ryobi battery adapter necessary because it lets me use the batteries I already own instead of buying a whole new set. Milwaukee batteries are powerful and reliable, and with an adapter, I can keep my Ryobi tools running without spending extra money on duplicate batteries and chargers. That saves me both time and cost, especially when I already have Milwaukee batteries charged and ready to go.
My experience also showed me that an adapter is useful for convenience. When I’m working on a project, I don’t want to stop just because the “wrong” battery brand is in my hand. The adapter gives me flexibility, so I can keep working with the tools I have instead of worrying about brand limits. It makes my toolbox more practical and adaptable.
I also like that it helps reduce waste. Instead of replacing batteries or tools that still work, I can make better use of what I already own. For me, that makes the adapter a smart choice for saving money, improving convenience, and getting more value out of my equipment.
My Buying Guides on Milwaukee To Ryobi Battery Adapter
What I Look For First
When I shop for a Milwaukee to Ryobi battery adapter, my first priority is compatibility. I want to make sure the adapter is designed to let Milwaukee M18 batteries power Ryobi 18V tools safely and properly. I also check whether the adapter is made for the exact battery and tool models I own, because not every adapter works the same way.
Build Quality and Materials
I always pay close attention to the material quality. A good adapter should feel sturdy, with strong plastic housing and tight battery contacts. If it feels flimsy, I usually skip it. In my experience, a well-built adapter lasts longer and gives me more confidence while using power tools.
Fit and Connection
The fit matters a lot to me. I prefer an adapter that locks securely onto both the Milwaukee battery and the Ryobi tool without wobbling. A loose fit can cause power interruptions, which is frustrating when I’m working on a project. I look for reviews that mention a snug and reliable connection.
Safety Features
Safety is a big deal for me. I check whether the adapter includes protection against overheating, short circuits, and over-discharge. Since I’m using a battery system not originally designed for the tool, I want an adapter that helps reduce risk and keeps my tools running safely.
Performance Expectations
I also think about how much performance I need. Some adapters work fine for light-duty tools, but I’ve found that high-drain tools can be more demanding. If I plan to use drills, saws, or other power-hungry Ryobi tools, I make sure the adapter can handle the load without cutting out.
Ease of Use
I prefer adapters that are simple to install and remove. I don’t want to struggle every time I switch batteries. A good design should let me swap batteries quickly while still holding everything firmly in place. If the adapter is too complicated, it slows me down.
Brand Reputation and Reviews
Before I buy, I always check customer reviews and seller reputation. I trust products that other users have tested and praised for reliability. If I see repeated complaints about poor fit, overheating, or broken clips, I avoid that adapter.
Price vs Value
I don’t always go for the cheapest option. In my experience, a slightly more expensive adapter often gives better durability and performance. I try to find the best balance between price and value, especially if I plan to use it often.
Warranty and Support
A warranty gives me peace of mind. If the adapter fails early or doesn’t work as expected, I want the option to return or replace it. I also appreciate sellers who provide clear support and product details.
My Final Tip
If I were choosing a Milwaukee to Ryobi battery adapter today, I’d focus on compatibility, build quality, and safety first. A good adapter should make my tools more flexible without creating new problems. For me, the best choice is the one that feels secure, works consistently, and gives me confidence on the job.
Final Thoughts
I think a Milwaukee to Ryobi battery adapter can be a smart, budget-friendly way to get more use out of the tools and batteries I already own. My main takeaway is that it offers convenience and flexibility, but I still need to make sure the adapter is compatible and safe to use with my specific tools. For me, it’s a practical solution when I want to bridge two different battery systems without buying everything new.
Author Profile
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Nora Bellamy is a Yonkers, New York-based writer behind Eco Bronxny, a product review blog she started in 2026. Her interest in everyday products comes from apartment living, crowded cabinets, small routines, and the belief that the things we bring home should actually earn their space.
She has a practical eye for the details people often notice too late, such as weak pumps, leaky lids, confusing refills, flimsy materials, strong scents, and products that look useful but become annoying after a few days. Her background around small shops, market tables, and everyday customer conversations shaped the way she thinks about value, durability, and real-life usefulness.
Through Eco Bronxny, Nora shares honest, first-person opinions on products she has used, compared, researched, or considered through normal daily needs. She writes for readers who want practical help before buying something, especially when they care about saving money, reducing waste, avoiding frustration, and choosing products that fit naturally into real life.
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