Greenworks CS40L05 40V 18-Inch Brushless Cordless Chainsaw

The Greenworks CS40L05 is a 40V cordless chainsaw with an 18-inch bar and a brushless motor. It is listed as tool-only, so buyers should already have a compatible battery and charger or budget for them separately.

At a glance

The manufacturer claims up to 250 cuts on 4x4 lumber per charge when used with an 8.0Ah battery. Actual runtime depends on the battery and cutting conditions.
Automatic chain oiling and easy-adjust tensioning are intended to simplify routine saw maintenance.
Push-button starting avoids a starter rope, while the battery-powered design does not use gas or produce exhaust fumes during operation.

Price

$209.99Save 25%

Reference price: ~~$279.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

The 18-inch chain is a useful reach for the listed tree-cutting, limbing, pruning and firewood tasks.
The brushless motor, automatic oiler and easy-adjust tensioning combine powertrain and maintenance features in one saw.
The listing describes compatibility with the Greenworks 40V battery platform, which may suit owners of compatible tools.

Cons

The tool-only configuration does not include a battery or charger, according to the product title.

Technical specifications

9 specifications

Identity
Brand	Greenworks
Model	CS40L05

Power and battery
Power configuration	Battery Powered

Cutting and maintenance
Chain length	18 inches
Motor	Brushless
Chain lubrication	Automatic oiler
Chain and bar adjustment	Easy adjust tensioning

Dimensions and weight
Dimensions listed	10.04"L x 36.81"W x 9.25"H
Weight listed	5.1 kg

What to know before buying

Listing details to confirm

The claimed 250 cuts per charge is specifically stated for 4x4 lumber with an 8.0Ah battery. Battery capacity and cutting conditions affect runtime, and the title describes this as tool-only, so confirm the selected listing's included items before buying. The manufacturer description also refers to 40V platform coverage of over 40 outdoor products, while the title claims 75+ compatible tools. Treat the broader compatibility count as unconfirmed.

What’s in the box

Included

Chainsaw
Manual

Who is it for?

A good fit for

Greenworks 40V battery owners seeking an 18-inch cordless saw for yard cutting and firewood preparation.
Buyers who prefer push-button starting and automatic chain lubrication over a gas-powered setup.

Less suited to

Buyers who need a battery and charger included in the package.
Buyers who need a stated runtime guarantee independent of battery capacity and cutting conditions.

Greenworks CS40L05 40V 18-Inch Brushless Cordless Chainsaw · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 27 ratings

5 stars68%68%
4 stars10%10%
3 stars9%9%
2 stars9%9%
1 star4%4%

Customer feedback highlights build quality and cutting speed, including one customer's comparison with an 80V Greenworks model. The overall ratings lean positive but are mixed. These impressions may matter to buyers considering the brushless motor and 18-inch configuration, but they do not establish cutting performance or runtime for a particular job.

Positive themes

Customers describe the build quality positively.
Customers mention speed positively.

Frequently asked questions

Does this chainsaw include a battery and charger?

The title identifies it as tool-only. The listing's included-components field names a chainsaw and manual, so do not assume a battery or charger is included.

How many cuts can it make on one charge?

The manufacturer claims up to 250 cuts on 4x4 lumber with an 8.0Ah battery. This is a conditional claim, not a general runtime figure for every battery or cutting task.

What maintenance features are listed?

The saw has an automatic oiler for chain lubrication and easy-adjust tensioning for bar and chain maintenance.

Which Greenworks batteries are compatible?

The listing identifies the saw as part of the 40V platform, but its compatibility counts differ between the title and manufacturer description. Confirm compatibility with your specific battery before buying.