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Cordless tool guides
The questions every cordless buyer hits, answered straight — no invented numbers, linked to the platform data they affect.
- Are tool batteries interchangeable between brands? — the lock-in truth, and the two friendly exceptions.
- 20V MAX vs 18V — the marketing behind the voltage sticker.
- Battery Ah explained — 2Ah vs 5Ah and the two-battery strategy.
- Brushless vs brushed — when the premium pays for itself.
Then pick your platform: the 3-question picker · every platform compared.
Ready to buy into a platform?
These four are what buyers actually cross-shop — the first three are pro-grade, Ryobi is the DIY value pick. Batteries are the lock-in, so start with a kit on the platform you'll stay on.
| Platform | Voltage | Best for | Ecosystem | Buy | |
|---|---|---|---|---|---|
 | DeWalt 20V MAX | 20V MAX | Professional | Massive | Tools → |
 | Milwaukee M18 | 18V (M18) | Professional | Massive | Tools → |
 | Makita 18V LXT | 18V LXT | Professional | Massive | Tools → |
 | Ryobi ONE+ 18V | 18V ONE+ | DIY & homeowner | Massive | Tools → |
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