Greenworks G-MAX 40V Cordless 16-inch Review

Most people who have spent a decent chunk of time wielding a chainsaw would agree that gas is better than electric. However, electric chainsaws may be the future of consumer and commercial chainsaws and the Greenworks G-MAX 40V is a prime example of why.

While it may not have the brute power or running time of its gas-powered counterparts, the convenience features prove that electric is likely where chainsaws are headed.

Great Running Time

The Greenworks G-MAX 40V can cut nearly a cord of wood on a single charge! In fact, Greenworks claims it can make a 100 cuts if fully charged. It’s important to note that running time is dependent on what you’re cutting. The material, diameter, and wetness of the wood can affect running time on an electric tool. But in our experience, it stands up to the claims on reasonable material.

Brushless Motor

By far the biggest feature of the Greenworks G-MAX 40V is the brushless motor. This means the system is run electronically instead of the traditional mechanical way which uses brushes. As a result, the G-MAX 40V doesn’t lose efficiency because of brush contact with the commutator. No brushes also reduces friction which causes the engine to run cooler resulting in longer life and basically zero maintenance. It also reduces the vibrations making it easier to handle and other parts won’t damage overtime. The brushless motor is a huge step for a chainsaw, so this model is paving the way.

Longer Bar but Usable

Another unique feature of the Greenworks G-MAX 40V is its longer bar. 16 inches may not sound like a lot compared to some chainsaws but nearly all cordless chainsaws never exceed 14 inches. So the 16-inch Oregan bar on this model is unexpected but it also functions well and you will be able to use all 16 inches to maximum effect.


Like most modern chainsaws the Greenworks G-MAX 40V comes with the necessary features to keep users safe. It comes with a chain brake and handguard like most chainsaws. However, being a cordless electric chainsaw it also offers some additional safety features. Such as a quick-release trigger, and easy on/off control so if need be you can easily turn off the chainsaw without having to worry about restarting it. This is especially helpful if you find yourself up in the air or on a ladder, you definitely don’t want to deal with yanking a pull cord and risk falling. The saw also automatically powers off after a minutes if not in use.

Easy to Use

The Greenworks G-MAX 40V also comes equipped with an automatic oiling system (common), simply unscrew the cap and pour and the machine does the rest for you. The chain tensioning system was also remarkably simple. It’s controlled by two dials on the side of the chainsaw, and they’re incredibly easy to use. This means you don’t have to waste possibly 10-15 fiddling to ensure your chain doesn’t break. The chain also stayed tight for a longer time.


  • Newer tech that’s effective
  • Easy to operate
  • Safe
  • Worth the low-medium price point (includes all accessories)


  • Gas still has superior power
  • Not the cheapest cordless on the market
  • Not great for very large jobs


The Greenworks G-MAX 40V is great for people looking for something right above the cheapest option. Unlike many other models, it has enough power to fit its size so you won’t feel like it should be capable of more. It also comes with all the convenient features that make work easier and safer. The new technology also gives it a step up in comparison to other similar models. Less maintenance, longer running time, and greater efficiency all make this a perfect choice who need a middle of the pack chainsaw.


  • Charge time 120 min. (4.0 Ah battery)
  • Motor, brushless
  • Bar, 16-inch Oregon steel
  • Chain brake, hand guard, auto power off, quick release trigger
  • Battery G-MAX 4.0 Ah (also usable with 2.0 Ah battery)
  • Charger G-MAX 29482
  • Warranty 4 years for consumer