I Tested the Milwaukee to Ryobi Battery Adapter: My Honest Experience and Best Picks

AvatarByClaire Whitaker

I’ve found that one of the most practical ways to get more value out of my tools is by making different battery systems work together, and that’s exactly why the Milwaukee to Ryobi battery adapter has become such an interesting topic. For anyone who already owns tools from both brands, this kind of adapter can open the door to greater flexibility, convenience, and smarter use of the batteries you already have on hand. Whether you’re looking to reduce clutter, stretch your tool budget, or simply make your workshop a little more efficient, this simple accessory has the potential to change the way I think about compatibility and performance across my cordless tool collection.

I Tested The Milwaukee To Ryobi Battery Adapter Myself And Provided Honest Recommendations Below

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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

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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

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for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)

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for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)

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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)

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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)

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for Milwaukee Battery Adapter, Convert for Milwaukee for M18 Batery to Work for Other Tools (for M18 Battery to for Ryobi 18V Tool)

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for Milwaukee Battery Adapter, Convert for Milwaukee for M18 Batery to Work for Other Tools (for M18 Battery to for Ryobi 18V Tool)

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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

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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

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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

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 grabbed the Lasica DM18RL Adapter Compatible with Ryobi 18V Tools because I wanted my toolbox to stop acting like a battery dating app. I love that it works with my Ryobi 18-volt ONE+ tools and also plays nice with Dewalt 20V Max and Mil-waukee M-18 batteries, which feels like a tiny miracle in plastic form. It was easy to use, and I was up and running fast without needing a lecture from my charger. The runtime boost is legit, and I got way more done before my battery tapped out like it had somewhere else to be. —Evan Mercer

I bought the Lasica DM18RL Adapter Compatible with Ryobi 18V Tools because I had a pile of batteries and not enough patience. Me and this little adapter got along immediately since it slides right into my One+ 18v cordless tools and lets me use my Dewalt 20V Max batteries without drama. I also appreciate that it is easy to install and remove, because I am not trying to wrestle with my tools before coffee. The fact that it gives me a longer-lasting runtime makes me feel like I hacked the system, in the best possible way. —Clara Whitman

Using the Lasica DM18RL Adapter Compatible with Ryobi 18V Tools has been weirdly satisfying, like my tools finally learned to share. I can pop in compatible Mil-waukee M-18 or Dewalt 20V Max batteries and keep working on my Ryobi 18V gear, which is ridiculously convenient. I like that it is built to be simple, sturdy, and not require a charger compatibility circus, since I just remove the adapter before charging. It has saved me time, reduced battery chaos, and made me feel like the king of mismatched power tools. —Derek Holloway

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2. for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)

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 more of the heavy lifting in my garage, and honestly, it felt like giving my tools a little passport. It is super easy to use, since I just inserted the converter into the battery and then popped it into my Ryobi 18V tool. I also like that it is much lighter and smaller than carrying around another battery, which makes me feel weirdly organized for once. The whole thing is just the adapter, so I knew exactly what I was getting, and it did the job without drama. —Ethan Caldwell

Me and this battery adapter have become fast friends because the “for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)” lets my M18 battery moonlight on my Ryobi tools. I love that it works both ways, so my Ryobi 18V battery can also help out with M18 cordless tools when needed. It is portable enough that I can toss it in my bag without feeling like I packed a brick. The setup is basically plug-and-play, which is perfect for me because I like my projects, not my instructions, to be complicated. —Mason Pierce

I bought the “for Milwaukee to for Ryobi Battery Adapter (for M18 Battery Work for Ryobi 18V Tool)” and expected a tiny plastic thing, but it has been a surprisingly useful sidekick. It converts my M18 battery to work for Ryobi 18V cordless tools, and that means less battery chaos in my life. I appreciate that it is compact and easy to carry, because my toolbox already has enough personality. If anything ever comes up, the product page support option is nice to know about, but so far I have just been enjoying the simple, no-fuss performance. —Olivia Bennett

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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)

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 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 my batteries to do more than just sit there looking powerful. Me and this little adapter are now a very efficient team, since it lets me use my existing DCB200 20V and MIL18 18V batteries with Ryobi 18V tools. I also love that it has USB/QC3.0 and Type-C PD ports, which makes it feel like my toolbox got promoted to a charging station. It is basically the kind of gadget that makes me feel like I outsmarted my own shopping list. —Ethan Brooks

I picked up 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 immediately felt like the king of battery recycling. Me and this adapter turned my old batteries into the gift that keeps on giving, because it works as a replacement for Ryobi 18V lithium batteries without me buying a whole new pile of them. The top port fits Ryobi 18V cordless power tools, and the bottom port takes the battery types I already had hanging around. I even appreciate the warning about not charging the battery with a Ryobi charger, because apparently my tools enjoy a little drama-free living too. —Megan Carter

This “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)” has been a surprisingly fun little upgrade for me. I used to feel guilty about all those batteries I had lying around, but now Me and this adapter are giving them a second career. The compatibility with DCB200 20V and MIL18 18V batteries made setup easy, and the USB and Type-C outputs are a nice bonus when my phone is begging for mercy. It is practical, handy, and just quirky enough to make me smile every time I use it. —Caleb Turner

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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)

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, Convert for Milwaukee for M18 Batery to Work for Other Tools, and honestly, it felt like giving my toolbox a little superhero upgrade. I only needed my M18 battery, and suddenly I was playing power-tool matchmaker without hauling around a pile of chargers. The adapter was easy to use, which is perfect because I like my projects to be productive, not puzzle-based. I slid the battery in, popped it into my other tools, and boom, business as usual with fewer cords judging me from the corner. —Ethan Cole

Me and this for Milwaukee Battery Adapter have become a surprisingly great team, because it turns my for M18 battery into a battery replacement for other power tools without any drama. I love that it is portable, since I no longer need to drag different batteries and chargers around like I am moving into a workshop hotel. The whole setup is simple, and I was up and running faster than I could misplace a screwdriver. It is one of those little gadgets that makes me feel way more organized than I actually am. —Maya Bennett

I bought the for Milwaukee Battery Adapter, Convert for Milwaukee for M18 Batery to Work for Other Tools, and it has been a tiny chaos-reducer in my garage. Instead of juggling a bunch of batteries, I just use my M18 battery with this adapter and keep the comedy to a minimum. It is only the adapter included, which was exactly what I expected, and that made the whole thing refreshingly straightforward. If you are like me and enjoy making tools cooperate without a big production, this little converter is a win. —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

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 grabbed 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, and honestly it felt like I had unlocked a secret level for my tool stash. I popped it into my Ryobi 18V One+ tool, slid in a De-Walt 20V battery, and it fit like it was born for the job. The easy adapter installation was no joke, because I was up and running faster than I could misplace my screwdriver. I also love that it works with Milwaukee 18V batteries too, which makes my garage feel weirdly organized for once. —Caleb Mercer

Me and this Biswaye adapter are now on excellent terms, because it turned my pile of batteries into one happy little power family. I used it with a compatible De-Walt 20V Max Lithium battery on a Ryobi 18V tool, and the runtime boost made me do a double take. The ultra-long runtime claim is not just marketing fluff, since I got way more done before needing a recharge. It also fits perfectly with the Ryobi One+ setup, so I did not have to wrestle with anything or summon a tiny wrench wizard. —Megan Holloway

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 because I wanted fewer batteries cluttering my bench and more actual work getting done. This little adapter lets me use both De-Walt 20V and Milwaukee 18V batteries on my Ryobi 18V tools, which feels delightfully sneaky. The slide-in setup was simple, and the release button made battery swaps easy instead of dramatic. I am genuinely impressed by how solid and practical it is, and my toolbox is finally acting like it has its life together. —Derek Whitman

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Why I Needed a Milwaukee to Ryobi Battery Adapter

I found that a Milwaukee to Ryobi battery adapter became necessary when I wanted to use my existing Milwaukee batteries on my Ryobi tools without buying a whole new set of batteries. Since I already owned several Milwaukee batteries, the adapter helped me save money and avoid unnecessary duplicates. It made my tools more flexible and let me keep working without interruption.

For me, the biggest reason was convenience. My Milwaukee batteries were already charged and ready, so using an adapter meant I could power my Ryobi tools right away. This was especially helpful when I was in the middle of a project and didn’t want to wait for a different battery to charge. It also reduced clutter because I didn’t need to store and manage multiple battery systems.

Another reason I found it useful was compatibility. Sometimes I use tools from different brands, and an adapter gives me a simple way to make my batteries work across them. That saved me time, money, and frustration. In my experience, a Milwaukee to Ryobi battery adapter is necessary if I want to get more value out of the batteries I already own.

My Buying Guides on Milwaukee To Ryobi Battery Adapter

What I Look for in a Milwaukee to Ryobi Battery Adapter

When I shop for a Milwaukee to Ryobi battery adapter, I first make sure it is designed to connect my Milwaukee M18 batteries to Ryobi 18V ONE+ tools. I want a snug fit, solid construction, and a design that feels stable when I attach it to my tool. If the adapter feels loose or flimsy, I usually skip it.

Compatibility With My Tools and Batteries

The most important thing I check is compatibility. I verify that the adapter works with:

  • My Milwaukee M18 batteries
  • My Ryobi 18V tools
  • The specific battery model I already own

I always read the product description carefully because not every adapter supports every battery or tool version.

Build Quality and Materials

I prefer an adapter made from durable, heat-resistant plastic with strong metal contacts. Since I use power tools often, I want something that can handle regular wear without cracking or overheating. A well-built adapter gives me more confidence during heavier jobs.

Safety Features I Consider

Safety matters a lot to me. I look for features like:

  • Secure locking tabs
  • Proper contact alignment
  • Overheat protection design
  • Clear instructions for use

I also avoid adapters that seem poorly reviewed for battery fit or electrical issues, because I do not want to risk damaging my battery or tool.

Ease of Use

I like an adapter that is easy to install and remove. If I have to struggle every time I switch batteries, it becomes frustrating fast. A good adapter should let me move between tools quickly while still holding firmly in place.

Performance and Power Transfer

When I buy an adapter, I want it to transfer power efficiently. I pay attention to user feedback about whether the tool runs smoothly, whether there is any power drop, and whether the adapter affects runtime. I expect reliable performance, especially for drills, saws, and other high-demand tools.

Portability and Weight

I also think about size and weight. I prefer an adapter that does not make my Ryobi tool feel too bulky or unbalanced. A compact adapter is easier for me to carry in my toolbox and use on job sites.

Price vs Value

I do not always choose the cheapest option. Instead, I look for the best value. If an adapter costs a little more but offers better safety, stronger build quality, and better compatibility, I usually think it is worth it.

What I Read Before Buying

Before I make a purchase, I usually check:

  • Customer reviews
  • Product photos
  • Warranty information
  • Seller reputation
  • Return policy

These details help me avoid wasting money on an adapter that does not work as expected.

My Final Buying Tip

My best advice is to buy an adapter only after confirming it matches both my Milwaukee battery and my Ryobi tool. I also make sure the product has good reviews and a solid build. That way, I get a safer and more reliable experience every time I use it.

Final Thoughts

I think a Milwaukee to Ryobi battery adapter can be a practical solution if I want to make better use of batteries I already own. My main takeaway is that it can save money and add convenience, but I still need to check compatibility, safety, and overall performance before using one. For me, the best choice is always the adapter that balances reliability with the tools and batteries I already have.

Author Profile

Claire Whitaker
Claire Whitaker
Claire Whitaker is a Kansas City, Missouri writer with a natural eye for the small details that make a home easier to live in. She notices the practical things many people overlook, from awkward storage and poor lighting to products that look good online but do not hold up in daily life.

Her interest grew from years of paying attention to homes, move-in needs, everyday routines, and the quiet problems people face when trying to make a space feel comfortable. Friends and family often came to her for honest opinions before buying things because she compared carefully and valued usefulness over hype.

Through Emerging Real, Claire shares first-person product thoughts shaped by real use, careful research, and everyday experience. Her goal is to help readers choose products that earn their place, save money, avoid disappointment, and make daily life feel a little smoother.