Greenworks 40V 12-Inch Chainsaw Review: Cordless Cutting With Tool-Less Tensioning

Greenworks 40V 12-Inch Overview

Greenworks 40V 12-Inch Chainsaw cuts 12 Inches for you if you need a compact saw for lighter yard work.

With a 6-pound body, a small saw can be the difference between finishing a trim job and stopping early.

Greenworks 40V 12-Inch turns that into a compact battery saw with a 40V pack and a 12-inch bar, which suits pruning, yard cleanup, and short cuts.

We screened 95 Chainsaws and this is one of 15 chosen for a full review. Full reviews go to the most-rated products that pass screening, at most 2 per brand. This one has 8,158 buyer ratings, the 3rd most of the 95 screened. The price is around $179.99, and the rating is 4.3 from 8,158 buyer ratings. If you are moving up from an older saw, prioritize bar length and battery capacity over extra features.

The Short Answer on the Greenworks 40V 12-Inch

Best for: you want a lightweight cordless saw for trimming small branches and yard cleanup, not all-day firewood work.

Choose the Greenworks 40V 12-Inch if that use case fits; it is around $179.99.

• Pro: The 12-inch bar suits pruning, limbing, and other smaller cuts.
• Pro: Its 40V battery system gives you cordless operation for yard work away from an outlet.
• Pro: At 6 pounds, it stays in the lighter half of the cordless chainsaws we screened.
• Con: The 2.0Ah battery limits runtime, so longer firewood sessions will need a spare pack.
• Con: A 12-inch bar rules out the longer reach you want for bigger limbs and faster bucking.

Don’t buy this if: you need a saw for 16-inch or longer bar work, because this model is built around a 12-inch cutting length.

Price assessment: $179.99 is fair for a 40V cordless saw with a 12-inch bar and a 6-pound listed weight.

If you need a larger bar, see our full review of the 20322 16-Inch.

You can also view our guide to the best lightweight chainsaw for women.

Full Specifications for this Chainsaw

Battery capacity is the deciding spec that separates this Greenworks 40V 12-Inch most clearly; it measures how much electric charge the battery can store before recharging.

New owners should view how a chainsaw works and what it is.

Before You Buy: Chainsaw Checklist

The first thing to check is whether a 12-inch bar matches the yard work you plan to cut. A 12-inch guide bar suits small trees and cleanup jobs, but it limits the diameter you can span in one pass.

• ☐ Confirm the bar length — 12 inches; if your cleanup includes larger limbs, you will end up with a saw that feels too short and may need a second pass or a different model.
• ☐ Check the battery platform — 40V; if your older pack system is not compatible, you will need to buy into a new battery setup before you can use the saw.
• ☐ Budget for runtime — 2.0Ah; if you expect long pruning or storm cleanup sessions, you may have to swap packs sooner than planned or move up to a larger-capacity option.
• ☐ Confirm the chain match — 3/8 in low-profile chain and .050 in gauge; if the bar and chain do not match these figures, the saw will not cut correctly and the setup will wear fast.
• ☐ Measure the weight you want to carry — 6 pounds; if that is heavier than you want for overhead pruning, you will live with a saw that feels less manageable during longer sessions.

If you need a saw for larger limbs, longer runtimes, or a battery system you already own, you should not buy this one.

What These Specifications Let You Do

Cordless Power

Greenworks 40V 12-Inch gives you 40V and a 2.0Ah pack, so you can handle light pruning and small cleanup without a cord in the way. Its battery size points to short sessions rather than all-day cutting, and the worked-out runtime here puts it around half an hour to an hour for pruning or campsite cleanup.

That runtime is enough for trimming hedges and small branches, which is the lighter end of cordless saw work. It is not enough for a weekend of firewood chores or storm debris if you want to avoid frequent stops, because those jobs call for more stored charge than 2.0Ah provides.

How a 12-inch bar and safety features improve control

The Greenworks 40V 12-Inch uses a 12-inch bar, a low kickback safety chain, and a hand guard, so you have a compact saw for tighter yard work with more control features than a bare-bones trim saw. A 6-pound weight also matters here, because lighter saws are easier to position for overhead limbing and short cuts around the yard.

That 12-inch bar keeps the saw in the light-duty range, where you are trimming branches and clearing small limbs rather than pushing into larger firewood. If you need to span thicker wood more often, the short bar limits reach before battery voltage becomes the main issue.

How tool-less tensioning makes chain adjustment easier

Greenworks 40V 12-Inch includes tool-less tensioning, so you can tighten the chain without a separate wrench during a job. That matters when you want to stay on task after a chain loosens from a few cuts, especially on short pruning runs.

Tool-less tensioning also helps if you are sharing the saw between small cleanup jobs, because quick adjustment matters more on a compact 12-inch saw than on a larger firewood saw. The automatic oiler adds another practical limit control for longer trimming sessions, since chain lubrication is handled as you work and not as a separate setup step.

Common Buyer Jobs Checked Against the Greenworks 40V 12-Inch’s Specs

The Greenworks 40V 12-Inch against the jobs buyers ask about, worked out from its listed battery voltage and battery capacity and a typical need for each job.

The Greenworks 40V 12-Inch Against Similar Chainsaws

Greenworks’ clearest advantage here is the 40V battery platform paired with a 12-inch bar and 2.0Ah capacity. That combination gives you a compact cordless saw with enough reach for lighter yard work, while the 6-pound weight keeps the package small.

• Against the Greenworks 24V Chainsaw, this model brings 40V instead of 24V. That higher voltage matters for the electrical pressure available to the motor.
• Against the Greenworks 80V Chainsaw, the 12-inch bar is shorter than its 18-inch bar. If you want more reach for larger limbs, the 80V model gives you that longer cutting span.
• Against the Greenworks 40V Chainsaw, the bar length matches at 12 inches.
• Against the Craftsman S185 Chainsaw, this Greenworks model is battery powered rather than gas powered. That makes the comparison about cordless setup versus a 42cc 2-cycle engine.
• Against the Poulan Pro PP4218A Chainsaw, the price is about $0.99 higher. That small gap does not buy a bigger bar, since both listings are 18 inches versus 12 inches here.

Choose the Greenworks 80V Chainsaw instead if you want the longer 18-inch bar for larger cuts. The 80V model also gives you a higher voltage class than this 40V saw.

For a different brand option, read our spec breakdown of the LCS1240B.

Setting Up This Tree Saw, and What Support Covers

What Greenworks 40V 12-Inch needs before it can cut

A 40V battery is the one thing this Greenworks 40V 12-Inch needs before it can do any cutting.

1. Unpack the saw and confirm the 12-inch bar and chain are fitted as listed.
2. Install a 40V battery, since the saw is battery powered and cannot run without it.
3. Check the automatic oiler before the first cut, because the cutting system needs bar and chain oil to stay lubricated.
4. Tension the chain with the tool-less tensioning control until it sits correctly on the 12-inch bar.
5. Start with the electric start and make a short test cut in small material before moving to larger limbs.

Warranty and support checks after delivery

Warranty cover differs by seller and country.

• Confirm the return window for the saw and battery, because a 40V pack is the part most likely to be costly to replace.
• Confirm whether the battery and charger are included, because the saw is unusable without a compatible 40V power source.
• Confirm the replacement chain size before the return window closes, because it has to match the 12-inch bar length.
• Confirm support terms for the automatic oiler and tool-less tensioning, because both affect whether the saw stays ready for regular use.

On the day it arrives, open the box and verify the 12-inch bar, the 40V battery setup, and the included charger before the return window closes.

Greenworks 40V 12-Inch Buying Questions Answered

Can the Greenworks 40V 12-Inch handle pruning and yard cleanup?

Yes, the Greenworks 40V 12-Inch suits pruning and campsite cleanup better than heavier firewood work. Its 40V battery and 2.0Ah pack point to a shorter run window, so plan on lighter jobs rather than long sessions.

Is the 12-inch bar enough for storm debris?

The 12-inch bar gives this chainsaw a shorter reach than 16-inch and 18-inch homeowner saws. That makes it a better fit for small limbs, trim work, and compact cuts. It is less suited to larger-diameter wood.

How heavy is the Greenworks 40V 12-Inch?

Greenworks lists the 40V 12-Inch at 6 pounds. That weight favors easier handling over long reach, especially if you already own a heavier gas saw. The lighter frame also helps when you are trimming overhead branches.

Does the Greenworks 40V 12-Inch use a standard chain setup?

Yes, the Greenworks 40V 12-Inch uses a 12-inch bar and chain setup with a low kickback safety chain. You are getting the bar length, not a full chain-spec sheet.

Is the Greenworks 40V 12-Inch worth around $179.99?

That price makes sense if you want a cordless saw for light yard work and already value the 40V platform. The $179.99 mark sits with a 4.3 average from 8,158 buyer ratings, but the specs still point to a compact saw, not a firewood-first machine.

Consider exploring the alternatives to a traditional chainsaw if you want different tools.

Is the Greenworks 40V 12-Inch Right for You?

Who the Greenworks 40V 12-Inch suits and the jobs it is the wrong choice for, listed below with the reason for each.

Where to Buy This Chainsaw

When we looked in November 2026, the Greenworks 40V 12-Inch was listed at $179.99 – a snapshot that may have changed since.

Chainsaws are sold by the retailers below – we do not track which of them has the Greenworks 40V 12-Inch in stock, so check availability and the current price with the retailer before making a trip.

• Home Depot (online and physical stores) — broad assortment and easy in-store returns
• Lowe’s (online and physical stores) — broad assortment and convenient physical-store pickup
• Amazon (online only) — wide marketplace selection across many brands and configurations
• Walmart (online and physical stores) — broad mass-market selection and easy local returns
• Ace Hardware (online and physical stores) — neighborhood-store convenience and knowledgeable staff
• Northern Tool + Equipment (online and physical stores) — specialist-oriented selection for outdoor power equipment
• Acme Tools (online only) — tool-focused assortment with trade and business account options

Final Verdict on the Greenworks 40V 12-Inch

You should choose this Greenworks 40V 12-Inch if you want a light cordless saw for pruning and small yard cleanup, and the price sits around $179.99.

The 12-inch bar, 40V battery, and 2.0Ah pack define its job range. That combination suits hedge trimming, small branches, and lighter storm cleanup, but it does not support long firewood sessions or bigger limbing jobs without a larger battery.

Skip it if: you need a saw for long firewood runs or repeated storm debris cutting, or you want more runtime than a 2.0Ah pack can provide.