DeWalt vs Makita vs Milwaukee: Which Battery Platform Is Best in the UK

Choosing the right cordless battery platform is one of the biggest long-term decisions you can make as a DIYer or tradesperson. I’ve seen this firsthand in my own work: my main setup is built around the DeWalt XR ecosystem, but I also run several Makita garden tools, and on-site I regularly work alongside professionals who swear by Milwaukee, Makita XGT, Ryobi ONE+, and plenty of other platforms.

That mix of personal ownership and day-to-day exposure has given me a unique view of how these systems actually perform, not just in spec sheets, but on real jobs, in real hands, under real pressure. I’ve seen where each brand shines, where it struggles, and how much difference the right (or wrong) battery platform can make when you’re in the middle of a job.

Whether you’re a homeowner looking to build your first cordless toolkit or a tradesperson planning a long-term investment, your choice of battery ecosystem affects cost, compatibility, tool selection, and future upgrades. Once you commit to a platform, every tool you buy afterwards becomes cheaper and every battery you add strengthens the system.

In this guide, I’ll walk through the major platforms you’ll encounter in the UK today from DeWalt to Milwaukee, Makita to Ryobi and break down how they compare in the real world. The goal isn’t to crown a winner, but to help you choose the ecosystem that will work for your jobs, your budget, and your future plans.

Why Your Choice of Battery Platform Matters

Total Cost of Ownership

Batteries are often the most expensive recurring part of a cordless system.
If you stick to one platform, you save long-term by reusing batteries across tools.
Upgrading later (e.g., to higher-voltage tools) can be more cost-effective if the ecosystem supports it.

Compatibility and Future-Proofing

Some platforms support multiple voltages (or “multi-voltage”) which gives flexibility.
Others are more focused, but may offer deeper performance or longer runtime.
Tool and battery compatibility influences resale value, expansion, and upgrades.

Use-Case Considerations

DIY / Homeowner – Your needs may be modest: drills, drivers, saws, garden tools.
Trades / Professionals – Runtime, power, and durability become more critical.

Platform Comparisons

Here I’ll compare major battery ecosystems, focusing on how they work in the UK market.

DeWalt: 20V MAX vs FlexVolt

DeWalt refers to its 18V system as “XR,” but also offers a 20V MAX range of tools and batteries.
FlexVolt is DeWalt’s hybrid-voltage battery system: a FlexVolt pack can automatically switch between 20V (or 18V) and 54V, depending on the tool.
That means: you can power your 18V / 20V tools and more power-hungry 54V tools with the same battery.

Trade-offs: FlexVolt batteries are more expensive and physically larger/heavier than standard 20V/18V packs, but they offer significantly more flexibility.

Use case: Ideal if you already have XR/20V tools and want to “upgrade” into high-voltage tools later, without abandoning your current toolkit.

Milwaukee: M18 vs M12

The M18 platform is Milwaukee’s 18V (nominal voltage) system for high-power tools.
The M12 system is 12V (nominal), smaller, lighter batteries, designed for tight spaces or lower-power tasks.
According to RHY Battery’s comparison, M18 supports “over 200+ high-performance tools” while M12 supports “over 100+ compact and mid-duty tools.”

User feedback:

“I have both … the M12 is definitely more used … It’s more compact … If you’re going to use it all day, I strongly prefer the M18.”

Charging: Milwaukee’s new M12–M18 hybrid chargers support both, making it easier for users who operate in both systems.

Use case:

M12: Perfect for domestic jobs, finishing work, maintenance, messing around in tight spots.
M18: Better for construction, heavy timber, demanding jobs, high-torque tools.

Makita: LXT (18V) vs XGT (40V)

Makita’s LXT system (called “18V” in the UK/EU) is their long-established platform of cordless tools.
Their XGT platform runs at 40V max, built for much higher power demand.
For example, the Makita BL4050F 5.0Ah XGT 40V battery is available in the UK.
The XGT charger (DC40RB) can charge two 40V batteries simultaneously and communicates digitally with the battery to optimise charging.

Trade-offs:

XGT batteries are heavier.
Tools in XGT are likely more expensive.
But you get significantly more power and runtime on high-demand tools.

Use case:

LXT: Good for general-purpose drilling, impact driving, and lighter jobsite tasks.
XGT: Better for very power-hungry tools (e.g., large saws, grinders, high-performance construction tools).

Ryobi: ONE+ vs ONE+ HP

Ryobi ONE+ is their 18V (or 18V nominal) system with a huge tool ecosystem (150+ tools in the UK system, according to HomeGrower).
ONE+ HP (“High Performance”) is a variant designed to deliver more current / power.
On HP tools, HP batteries (with extra contacts) can deliver higher amps, reducing voltage sag under load. But regular ONE+ batteries are still compatible with HP tools and chargers.

Trade-offs:

HP batteries are a little more expensive.
For very power-hungry HP tools, HP batteries bring noticeable performance improvement.
If you have only “standard” ONE+ tools, you might not need HP at first.

Use case:

For general DIY / garden work: ONE+ is probably enough.
For demanding tasks (e.g. metalwork, heavy cutting): HP gives more sustained power.

Which Ecosystem Is Best for UK DIYers?

Here are some recommendation frameworks based on different use cases:

Use case	Recommended ecosystem	Why
General home DIY / occasional jobs	Ryobi ONE+	Big tool library, affordable batteries, good performance.
Gardening + DIY combo	Ryobi ONE+ / HP or DeWalt 20V MAX	Flexible; HP if you want more power for garden tools.
Light trade / maintenance	Milwaukee M12	Compact, lightweight, manageable for daily tasks.
Heavy trade / site work	Milwaukee M18 or DeWalt FlexVolt	More runtime, power, and capacity, especially M18 for trade. FlexVolt if you want future high-voltage tools.
Professional / high-demand cordless tools	Makita XGT	High-voltage, high-performance for demanding tools.

Tips for Investing in a Battery Platform

Buy enough batteries
- For a trade setup, having at least 2–3 batteries ensures minimal downtime.
- For DIYers, 1–2 big capacity batteries might suffice.
Choose the right charger
- If possible, go for multi-bay or smart chargers that protect battery health.
- Consider chargers with cooling or communication (e.g., Makita’s DC40RB).
Battery maintenance
- Store batteries at moderate temperature.
- Avoid leaving packs completely flat: partial discharge + recharge prolongs life.
- Clean contacts regularly.
Plan for future tools
- If you think you’ll upgrade to more powerful tools later, consider flexible platforms (e.g., DeWalt FlexVolt or Makita XGT).
- Evaluate how many bare tools (tools-only) you might buy in the future vs kits.

Conclusion

Choosing the right battery ecosystem isn’t just about the tools in your hand today; it’s a long-term investment in your toolkit. I’ve learned this over the years: it’s easy to get swayed by flashy specs or a tool that “feels nice,” but the battery platform you commit to is what keeps your kit running smoothly for years.

For me, DeWalt XR and FlexVolt have been the backbone of my setup. I rely on them for almost every job, from quick DIY fixes to heavy-duty site work. The 20V XR system is perfect for general tools, while FlexVolt packs handle the high-demand gear without breaking a sweat. Having one ecosystem that just works, every time, makes a huge difference when you’re juggling multiple tasks on site.

That said, I also have a few Makita garden tools at home. They’re excellent for hedge trimming and mowing, but for the tools I use day in, day out on site, I always reach for DeWalt first.

Other systems, like Milwaukee M18/M12 or Ryobi ONE+, are great in their own right. I’ve worked alongside plenty of pros who swear by them, but for me, the reliability, battery compatibility, and sheer convenience of DeWalt make it my go-to.

The key is thinking beyond the next tool. Invest wisely in batteries and chargers up front, and you’ll save money, cut downtime, and build a toolkit that grows with you, not against you. That’s something I’ve learned from years of using different systems: when your battery ecosystem works, everything else just falls into place.