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Greenworks G-MAX 40V Review

A mediocre saw that's fine for smaller jobs and people that own the battery and charger from another G-MAX tool
Greenworks G-MAX 40V
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Price:   $252 List | $212.99 at Amazon
Pros:  Quiet, metal bucking spikes, light, quiet
Cons:  Slow wind-up time, not the best battery life, unimpressive performance
Manufacturer:   greenworks
By Ross Patton ⋅ Review Editor  ⋅  Oct 23, 2019
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62
OVERALL
SCORE


RANKED
#8 of 12
  • Saw Performance - 35% 6
  • Ease of Use - 30% 6
  • Battery - 25% 6
  • Noise - 10% 8

Our Verdict

The Greenworks G-MAX 40V is a solid chainsaw overall, but it isn't quite worthy of an award. While it does exceed the performance of some of the models near the bottom of our list, it is far from being at the top. It has a middle of the road price tag and landed near the middle for all of our testing. It doesn't offer the same level of functionality and power as the top tier models, but it makes sense to purchase the "tool only" only option if you already own a G-MAX 40V battery and charger.

Compare to Similar Products

 
Greenworks G-MAX 40V
Awards  Editors' Choice Award Editors' Choice Award Top Pick Award Best Buy Award 
Price $252 List
$212.99 at Amazon
$350 List
$349.00 at Amazon
$400 List
$339.97 at Amazon
$550 List
$297.33 at Amazon
$270 List
$220.99 at Amazon
Overall Score Sort Icon
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Pros Quiet, metal bucking spikes, light, quietTop-notch cutting performance, long-lasting battery, easy chain tensioning system, many other tools that use the same batteriesExcellent sawing power, good battery life, relatively inexpensivePhenomenal charge time, long bar, metal bucking spikesSpectacular battery life, two chain speed settings, barely consumes bar and chain oil
Cons Slow wind-up time, not the best battery life, unimpressive performanceSo-so wind-up timeHeavy, noisy, one battery size, limited line-up of other toolsHeavy, noisyNot the strongest cutting power, plastic chain tensioning system, electronic controls slow down sawing
Bottom Line A mediocre saw that's fine for smaller jobs and people that own the battery and charger from another G-MAX toolOne of the best options if you're looking for bar length, battery life, and tool-free chain tensioningThe most sturdy and effective 16" model we testedThis cordless chainsaw has a battery that charges ultra-quick to keep you plugging away at your projectA good degree of performance at a reasonable price
Rating Categories Greenworks G-MAX 40V EGO Power+ CS1800 ECHO CCS-58V4AH Greenworks Pro 80V Husqvarna 120i
Saw Performance (35%)
6
9
9
9
6
Ease Of Use (30%)
6
8
8
6
6
Battery (25%)
6
8
7
8
8
Noise (10%)
8
6
6
6
7
Specs Greenworks G-MAX 40V EGO Power+ CS1800 ECHO CCS-58V4AH Greenworks Pro 80V Husqvarna 120i
Model Number 20312 CS1800 CCS-58V4AH GCS80420 120i
Bar Length 16 inches 18 inches 16 inches 18 inches 14 inches
Measured Weight w/ Battery 12 lbs 12 lbs 4 oz 14 lbs 4 oz 15 lbs 2 oz 10 lbs 11 oz
Measured Battery Weight 2 lbs 15 oz 3 lbs 8 oz 4 lbs 3 lbs 8 oz 2 lbs 12 oz
Included Battery Size 4 Ah 5 Ah 4 Ah 2 Ah 4.2 Ah
Nominal Voltage 40V 56V 58V 80V 36V
Measured Runtime 27 minutes 60 minutes 34 minutes 27 minutes 40 minutes
Measured Run Time Eco Mode n/a n/a n/a n/a 54 mins
Measured Battery Charge Time 2 hrs 1.5 hr 1 hr .5 hr 2 hrs
Measured Average Cutting Time 12.582 seconds 5.876 seconds 6.136 seconds 5.32 seconds 13.486 seconds
Measured Wind Up Time 2.25 seconds 1.25 seconds .5 seconds 1.15 seconds .5 seconds
Measured Decibel Reading at 48in 83.8 dBa 88.8 dBa 87.5 dBa 86.8 dBa 85.9 dBa
Control Type Electronic button, side safety and chain brake Side safety w/ chain brake Thumb safety w/ chain brake Electronic button, side safety, and brake Electronic button, side safety and brake
Chain Replacement and Tensioning Type Tool free Tool Free Included Tool Tool free Tool free
Metal Bucking Spikes Yes Yes No Yes No
Oil Conservation 7 8 8 6 8
Bar & Chain Tank Location and Type Top Side, Screen Side Top Side, flip-up
Measured Body Dimesions 16x8x8 inches 16x9x8 inches 16x8x9 inches 14x9x7.5 inches 19x7x7 inches

Our Analysis and Test Results

The Greenworks G-MAX 40V falls somewhere in the middle of a saw that we have great things to say about and one that we can't recommend to our readers. We wouldn't actively dissuade you from buying it, but it might make sense to get something with a little more power if you're demanding on your tools or a lighter, cheaper saw for smaller jobs. The best thing that it has going for it is it is one of the quieter models that we've gotten to test.

The Greenworks G-MAX is your run of the mill electric chainsaw.
The Greenworks G-MAX is your run of the mill electric chainsaw.
Credit: Jenna Ammerman

Performance Comparison



Likes


During our saw performance tests the Greenworks model did fairly well. With an average cutting time of 12.6 seconds during our dimensional wood test, it falls in the middle of the pack. When we took it to the wood yard, it performed better with wet wood than it did with the dry wood at the lab.

Between the controls, the wind-up time, and the mediocre cutting...
Between the controls, the wind-up time, and the mediocre cutting performance, the Greenworks G-MAX is not the easiest saw to make cuts with.
Credit: Jenna Ammerman

Although we aren't the biggest fans of extraneous power buttons, we do like that it has an audio indicator to let you know that the saw is on so you don't have to physically look down to find the light.

We find electronic power buttons to be a redundant feature when...
We find electronic power buttons to be a redundant feature when there's already a chain brake, safety switch, and trigger on most models.
Credit: Jenna Ammerman

We are always a fan of metal bucking spikes — the Greenworks G-MAX 40V is one of only a handful of saws that we've reviewed that comes with this feature.

The metric that is easily the best for the G-MAX is noise. With a measured decibel level of 83.8, it is one of the quietest cordless chainsaws that we've tested.


Dislikes


Aside from the redundant power button, there are still a few other elements of the Greenworks that we aren't very fond of. It's got a pretty poor saw performance, especially considering that this saw has an exceptionally lethargic wind-up time.

We aren't fond of the G-MAX chain tensioning system. It requires you to turn a wheel with each hand which doesn't leave much of a way to hold the saw itself to get any leverage.

The Greenworks G-MAX chain tensioning system is not our favorite.
The Greenworks G-MAX chain tensioning system is not our favorite.
Credit: Jenna Ammerman

The Greenworks had a satisfactory runtime of 27 minutes during our testing, but with a 2 hour charge time, we weren't able to give it a good score for the battery.


Value


The Greenworks G-MAX is relatively cheap, but with a level of function that is less than impressive we recommend purchasing a chainsaw that offers better performance for a similar price

The G-MAX has a medium weight when compared to the rest of the field.
The G-MAX has a medium weight when compared to the rest of the field.
Credit: Jenna Ammerman

Conclusion


All in all, we find the Greenworks G-MAX to be particularly mediocre. If you have already invested in a different G-MAX 40V product it may make sense to stay with the same brand. Otherwise, we would recommend a different model.

Ross Patton