Ryobi vs Milwaukee vs DeWalt: Which Battery Platform?

Choose one battery platform and stay with it: batteries and chargers fit only their own brand’s tools, so the platform you pick decides every cordless tool you buy afterwards. For homeowners on a budget, Ryobi 18V ONE+ has a very wide range of home and garden tools at low prices. For heavier and daily use, the main systems are Milwaukee M18, DeWalt 20V Max and Makita 18V LXT. Pick the platform by the tools you expect to need over the next few years, not by the drill that happens to be on sale.

The main platforms compared

Platform	Voltage class	Best suited to	Known for
Ryobi 18V ONE+	18V	Homeowners, DIY, garden	Very wide, low-cost range; long-running battery compatibility within ONE+
Milwaukee M18	18V	Trades, heavy use	Large pro range, strong high-demand tools
Milwaukee M12	12V	Compact tools, second platform	Small drivers, ratchets, inspection tools
DeWalt 20V Max	18V class (20V Max)	Trades and serious DIY	Wide pro range; FlexVolt packs also run 20V tools
Makita 18V LXT	18V	Trades and DIY, including outdoor tools	Large range with many outdoor tools on the same battery
Bosch 18V	18V	DIY and pro	Well-made drills and drivers; smaller US range
Ridgid 18V	18V	DIY and pro	Sold mainly through Home Depot in the US
Craftsman V20, Hart, Kobalt 24V	20V / 24V	Budget DIY	Lower prices; ranges vary by shop and country

“20V Max” and “18V” describe the same battery class: five lithium-ion cells, about 18V working and 20V at rest. Cordless drill voltage explains the numbers.

How to choose

1. List the tools you’ll want in the next 2 to 3 years: drill and impact driver for most people, then perhaps a circular saw, oscillating tool, sander, lights, a leaf blower or string trimmer.
2. Check that the platform has them, at a price you’ll pay.
3. Match the platform to how hard you’ll use the tools:
   • occasional home use: a budget platform does the job and saves money;
   • weekly projects or a side business: a mid- or pro-grade platform lasts longer under load;
   • daily trade use: the pro platforms, with their larger batteries and heavy tools.
4. Buy a kit with two batteries and a charger first, then add bare tools (no battery) later; that’s where a platform saves money.
5. Check local availability and warranty: some brands sell only through one shop chain.

Mixing brands

Batteries don’t fit across brands. Third-party adapters can make one brand’s battery fit another’s tool, but they usually void warranties and can skip the protection circuits that stop a battery overheating or over-discharging. Are cordless drill batteries and chargers interchangeable covers which batteries mix and which don’t.

A second, compact platform

Many people add a 12V system for small tools: compact drivers, ratchets and inspection cameras. That’s fine as long as the main 18V/20V platform covers the heavy tools.

Related guides

• Power Tool Combo Kits: What to Look For Before Buying