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Greenworks G40CS30II Cordless Chainsaw Review


Rating: 4.1 out of 5 (from 1,956 reviews)

The Greenworks G40CS30II Cordless Chainsaw is a powerful, lightweight, and compact tool designed for easy cutting. Weighing only 2.6kg, it features ergonomic soft-grip handles and a 30cm blade, making it perfect for slicing through logs and smaller trees with ease. With a fast chain speed of 4.2m/s, it ensures efficient and speedy cutting, delivering quick, clean cuts every time. Safety is paramount, with a two-button feature preventing accidental startups.

The chainsaw's user-friendly design includes tool-less chain adjustment for easy tensioning and an automatic oiling system with a large 200ml translucent tank, ensuring the chain remains lubricated without the need for manual intervention. This model is compatible with any Greenworks 40V 2Ah or 4Ah battery, allowing you to use your existing Greenworks batteries to save space, reduce costs, and minimise waste. It is also backed by a 3-year guarantee from Greenworks.

Image of Greenworks G40CS30II Cordless Chainsaw

What users think:

The majority of users found that the Greenworks G40CS30II Cordless Chainsaw is impressively easy and safe to use, with more power than expected for a tool of its size. Its lightweight and quiet operation make it a delight for various tasks, such as cutting back overhanging trees, with the eco-friendly battery lasting a decent amount of time. Many were delighted with how quickly and efficiently it completed their jobs.

On the downside, users noted an issue with the chain lubricating oil. Any leftover oil in the tank after use tends to drain out, creating an oily mess on storage surfaces. This is due to the tool lacking an oil pump and relying on gravity to drip oil onto the chain, leading to leakage if the tank isn’t emptied post-use. This design flaw, known to the manufacturers, detracts from an otherwise convenient and highly useful tool for light work.

Additionally, users highlighted that while the chainsaw's solid build and fast chain speed of 4.2m/s allow it to slice through wood effortlessly, it does consume battery power quickly. Therefore, keeping spare batteries on hand might be necessary for extended tasks. Despite these drawbacks, many appreciated its efficiency and ease of use, particularly for light and medium-duty cutting tasks.

Direct quotes from owners:

So easy and safe to use and much more gutsy than I expected. Lightweight, quiet. does the job and is eco friendly. Batteries last a decent time and I cut back overhanging trees on my driveway in no time. Delighted!


Any chain lubricating oil left in the tank after use will drain, thus making an oily mess on whatever surface it is stored. This is because the tool is not fitted with an oil pump and relies on gravity to drip oil on to the chain - and on to your floor if you don't empty the tank after use! Regrettably, this is an unwelcome feature which is known to the manufacturers. A pity, because in all other aspects it's a convenient and very useful little tool for light work.


This is a solid unit, but do keep note that it eats through battery, with a chain-speed of 20m/s hardly surprising. Slices through wood like a hot knife through butter, just remember to angle the cut just right to prevent the weight of the branch/trunk crushing back on itself and you'll be slicing like a pro.

Price: £129.99

(at time of writing)

Today's Top Deals for the
Greenworks G40CS30II Cordless Chainsaw

Other models to consider:


Husqvarna 120 II 14" 38.2cc Petrol Chainsaw

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