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In-depth review

Greenworks Pro 80V 18 in. Brushless Chainsaw Review (2027)

The Greenworks 80V 18 inch saw is the longest battery bar here. Our research-based verdict for homeowners with big wood.

TGBy TrueGear Research TeamIndependent editorial teamLast updated How we researchResearch-based assessment · Chainsaws
Specs verified against manufacturer docs
No paid placements
Independently funded by readers
Updated 2026-11-01
Greenworks Pro 80V 18 in. Brushless Chainsaw Review (2027) featured graphic
Greenworks Greenworks Pro 80V 18 in. Brushless Cordless Chainsaw

Greenworks Greenworks Pro 80V 18 in. Brushless Cordless Chainsaw

The longest bar among the battery picks, an 18 inch 80V saw for homeowners with real firewood ambitions.

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Our verdict

The Greenworks 80V 18 inch saw is the battery pick for homeowners whose wood outgrows 16 inch bars: the longest battery bar in this guide, a brushless motor, a rapid charger in the box and a 4-year tool and battery warranty. It is also the heaviest battery saw here at 14.2 lb with the battery, and the included 2.0Ah pack is modest for an 18 inch saw. For big rounds and storm trees on a battery, it is the right compromise. For pruning, it is the wrong saw entirely.

What we like

  • An 18 inch bar, the longest in this guide's battery group, for logs the 14 and 16 inch saws must work around
  • Brushless motor with a maker claim of twice the torque of its brushed predecessor class
  • Kit includes a 2.0Ah battery and rapid charger, so the box is a working saw, not a project
  • Up to 110 cuts per charge on the maker page, with a 4-year tool and battery warranty behind it

What to watch out for

  • At 14.2 lb with the battery fitted it is the heaviest battery saw here to swing through a long session
  • The 2.0Ah pack is modest for an 18 inch saw, and sustained bucking will ask for a larger 80V pack
  • The maker SKU 2000002 and model GCS80420 differ from the GCS80421 model shown on the Amazon listing, so check the listing details before ordering spares

What owners report: Greenworks Greenworks Pro 80V 18 in. Brushless Cordless Chainsaw

Synthesized from recurring themes in long-term owner feedback.

Most praised

  • Owners with acreage like the reach of the 18 inch bar on storm-felled trees their smaller saws could not finish
  • The rapid charger shortens the wait between sessions, which owners with one battery notice immediately
  • It runs quiet enough for early-morning cleanup without drawing the neighbours into the conversation

Common complaints

  • The weight with battery fitted wears on shoulders during extended overhead limbing
  • A single 2.0Ah pack runs short on a full firewood afternoon, pushing owners toward a second battery
  • The model number mismatch between maker and listing pages confuses buyers ordering replacement chains

Who it is for

Homeowners with large trees or storm-felled timber who want battery power with a long bar.

Why 18 inches matters

Two extra inches over a 16 inch bar sound trivial until a round measures 17 inches and the smaller saw must cut from both sides. The 18 inch bar covers the common large firewood and storm-tree range in a single pass, and that is the whole reason this saw exists. The maker rates it at up to 110 cuts per charge, a figure that assumes the included 2.0Ah pack and moderate wood, so treat it as a starting point rather than a promise for hardwood sessions.

Weight and the 2.0Ah question

At 14.2 lb with the battery fitted, this is a saw that announces itself on the first hour of work, and overhead limbing is a short-session job with it. The included 2.0Ah battery and rapid charger are a reasonable kit, but sustained bucking will ask for a larger 80V pack, and owners report exactly that upgrade. The 4-year tool and battery warranty softens the investment, since the battery is covered as long as the tool.

The model number footnote

Buyers should note the model discrepancy before ordering spares: the maker page shows SKU 2000002 and model GCS80420, while the Amazon listing shows GCS80421. The saw is the same 80V 18 inch machine, but chain and bar orders should be matched by bar length and chain specification rather than by model string alone. It is a paperwork annoyance, not a product defect, and it is worth a minute of checking before a spares order.

Key specifications

Power
Greenworks Pro 80V, brushless motor
Bar and chain
18 in. bar and chain
Battery and charger
2.0Ah battery and rapid charger included
Cuts per charge
Up to 110 (maker page figure)
Weight
14.2 lb with battery (maker page)
Warranty
4-year tool and battery warranty (maker page)

Also consider

Research-based assessment. TrueGear has not hands-on tested this product; this evaluation synthesizes manufacturer specifications, retailer documentation, and published expert reviews.

Questions, answered

Is the 18 inch bar too much for a homeowner?

For pruning and small trees, yes. For large rounds, storm trees and firewood, the 18 inch bar is the point of the saw. Buy it for the wood you actually cut, not for the biggest number on the page.

How long does the included battery last?

The maker rates up to 110 cuts per charge with the included 2.0Ah pack. Hardwood and large diameters reduce that figure, and serious bucking sessions will want a larger 80V pack alongside.

What is the warranty?

Four years on tool and battery, per the maker page. That is longer than most battery saws here offer, and it covers the battery as well as the tool.

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