PowerToolGrid

DeWalt 20V MAX vs Milwaukee M18

DeWalt 20V MAX and Milwaukee M18 batteries don't swap: we have no source saying either pack runs the other's tools. DeWalt 20V MAX: 11 battery packs (1.7–10 Ah) and 19 garden tools listed. Milwaukee M18: 13 battery packs (2–12 Ah) and 29 garden tools listed. Widest mower: 21.5 in against 21 in. Strongest blower: 550 CFM against 650 CFM. Widest string trimmer: 15 in against 17 in.

At a glance

Fact DeWalt 20V MAX Milwaukee M18
Voltage on the label20 V18 V
Batteries11 packs, 1.7–10 Ah13 packs, 2–12 Ah
Garden tools listed19: 3 lawn mowers, 3 string trimmers, 2 leaf blowers, 5 hedge trimmers, 2 chainsaws, 1 pole saw, 3 other yard tools29: 1 mower, 6 string trimmers, 6 leaf blowers, 7 hedge trimmers, 4 chainsaws, 2 pole saws, 1 power head, 2 other yard tools
Widest mower21.5 in2X20V MAX 21-1/2 in Brushless FWD Self-Propelled Mower21 inM18 FUEL 21 in Self-Propelled Dual Battery Mower
Strongest blower550 CFMXR Brushless Blower650 CFMM18 FUEL Dual Battery Backpack Blower
Widest string trimmer15 inBrushless Foldable String Trimmer17 inM18 FUEL 17 in Dual Battery String Trimmer
Self-propelled mowers2 of 31 of 1
Longest tool warranty3 years3 years
Where it's soldSeveral storesSeveral stores

Counts are what this catalogue lists so far, not each brand's whole range.

Do the batteries swap?

No. We have no source saying a DeWalt 20V MAX pack runs Milwaukee M18 tools, or the other way round. Owning both means two sets of batteries and chargers, so choosing between them is choosing which tools you'll keep buying.

Which batteries work with DeWalt 20V MAX · Which batteries work with Milwaukee M18

Tool by tool

Each platform's products of a kind, biggest first by the spec that matters most for it. A dash means the brand publishes no figure we have read yet.

Batteries 11 vs 13

DeWalt 20V MAX

Milwaukee M18

All batteries from both brands, spec by spec →

Lawn mowers 3 vs 1

DeWalt 20V MAX

Milwaukee M18

All lawn mowers from both brands, spec by spec →

String trimmers 3 vs 6

DeWalt 20V MAX

Milwaukee M18

All string trimmers from both brands, spec by spec →

Leaf blowers 2 vs 6

DeWalt 20V MAX

Milwaukee M18

All leaf blowers from both brands, spec by spec →

Hedge trimmers 5 vs 7

DeWalt 20V MAX

Milwaukee M18

All hedge trimmers from both brands, spec by spec →

Chainsaws 2 vs 4

DeWalt 20V MAX

Milwaukee M18

All chainsaws from both brands, spec by spec →

Pole saws 1 vs 2

DeWalt 20V MAX

Milwaukee M18

All pole saws from both brands, spec by spec →

Other yard tools 3 vs 2

DeWalt 20V MAX

Milwaukee M18

All other yard tools from both brands, spec by spec →

Only one of them is listed with

  • Milwaukee M18 only: power heads & attachments.

Not listed here doesn't mean the brand doesn't make one; the catalogue is still growing.

Questions

Do DeWalt 20V MAX batteries work with Milwaukee M18 tools?

No. We have no source saying a DeWalt 20V MAX battery runs Milwaukee M18 tools, or the other way round, so owning both means two sets of packs and chargers.

Which has more garden tools, DeWalt 20V MAX or Milwaukee M18?

In this catalogue so far: 19 for DeWalt 20V MAX and 29 for Milwaukee M18. Both brands may make more than are listed yet.

Which has the bigger battery, DeWalt 20V MAX or Milwaukee M18?

By the brands' amp-hour figures, the largest DeWalt 20V MAX pack listed is 10 Ah and the largest Milwaukee M18 pack is 12 Ah. Amp-hours only compare fairly at the same voltage (20 V against 18 V); watt-hours, where the brand states them, are on each battery's page.

Which makes the wider mower, DeWalt 20V MAX or Milwaukee M18?

By the brands' own figures: 21.5 in for DeWalt 20V MAX (2X20V MAX 21-1/2 in Brushless FWD Self-Propelled Mower) and 21 in for Milwaukee M18 (M18 FUEL 21 in Self-Propelled Dual Battery Mower).

Which has the stronger leaf blower, DeWalt 20V MAX or Milwaukee M18?

By the brands' own figures: 550 CFM for DeWalt 20V MAX (XR Brushless Blower) and 650 CFM for Milwaukee M18 (M18 FUEL Dual Battery Backpack Blower).

Which has the wider string trimmer, DeWalt 20V MAX or Milwaukee M18?

By the brands' own figures: 15 in for DeWalt 20V MAX (Brushless Foldable String Trimmer) and 17 in for Milwaukee M18 (M18 FUEL 17 in Dual Battery String Trimmer).

Which has the longer warranty, DeWalt 20V MAX or Milwaukee M18?

The longest tool warranty we have read is 3 years for DeWalt 20V MAX and 3 years for Milwaukee M18. Batteries often carry a shorter one; check each product's page.

Answered from the catalogue data, as of October 29, 2026. How we compare.

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