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GreenWorks Lawnmower G-MAX 40V 460mm Brushless 4.0Ah Kit

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Experience the power, convenience and economy of a G-MAX 40V Li-Ion garden tool from GreenWorks.

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Product overview

Product overview

Experience the power, convenience and economy of a G-MAX 40V Li-Ion garden tool from GreenWorks.

This 3in1 460mm lawnmower is perfect for keeping your backyard trim and tidy without the hassle of fuel cans, oil and filter changes and chokes. Just charge up the 40V 4.0Ah lithium ion battery and get on with the job.

The 7 position height adjuster lets you easily change between 29mm up to 86mm cutting heights, while the 460mm steel cutting blade mechanism features an impact protection cut-out for safety.

The cutting-edge brushless motor provides more power, longer running time and higher speeds as well as greater efficiency and less noise, while the 50L catcher can handle plenty of clippings.
This high-tech mower even features a built in load sensor to automatically regulate RPM based on load conditions, so you'll always have the right power for the conditions.

If you don’t want to dispose of your clipping it’s easy switching to side discharge or mulching modes, giving you plenty of options when it comes to handling your garden waste.

GreenWorks Brushless DigiPro Series is an innovative solution for your garden tasks that rivals petrol-powered tools. Combined with the 40V G-MAX system, the Brushless DigiPro Series features a powerful brushless motor that improves the battery efficiency, delivers more power for greater performance, produces less noise and vibration, and extends the life of the motor for exceptional durability.

Traditional brushed motors tend to wear down over time, reducing efficiency and power. With a brushless motor, you can expect the same performance as the day you purchased it. The gear reduction design of the brushless motor also delivers greater torque.

Simplify your lawn care by ordering your clean, green and simple GreenWorks DigiPro 40V lawnmower today.

About GreenWorks The future is here and it's electric. Once you’ve experienced the power, convenience and economy of a 40V garden tool there will be no going back. The G-MAX 40V Li-Ion range from GreenWorks is already a best-seller in the US and Europe, now it’s ready to revolutionise the way Kiwi’s take care of their backyard.

GreenWorks tools are clean, green, quiet and maintenance free, with no compromises – experience the future today.

• High performance G-MAX 40V Lithium-Ion battery system gives fade-free power with no memory loss
• Zero emissions
• Powerful DigiPro brushless motor
• Built in load sensor automatically regulates RPM based on load conditions
• 460mm blade, impact protection technology
• 3-in-1 functions: Mulching, rear collection and side discharge
• 50L grass bag
• Single lever 7 position height adjustment, 29mm – 86mm
• Steel cutting deck
• 1x 40V 4.0Ah battery, 1x battery charger included
• 2 Year GreenWorks Tool Warranty, 1 Year GreenWorks Battery Warranty

Product code: 2500407
Model: GD40LM45
Voltage: 40V
Charge time 40V 4.0Ah: 120 mins
Motor: Brushless
Cutting width: 460mm
Number of cutting heights: 7
Minimum cutting height: 29mm
Maximum cutting height: 86mm
Collector volume: 50L
Rec. cutting area 4Ah: 600 m2
Weight w/o battery: 21kg
Battery weight (4.0Ah): 2kg


Can we help?

Our friendly and knowledgeable gurus are trained to answer all your questions as quickly as possible. So if there’s anything you need to know just give us a call during business hours, or send us an email any time.

0800 800 880
Customer questions

Questions and answers

0 votes
q: What is the weight including battery please?
a: The weight with the 4Ah battery is 23kg.
By Trade Tested on
0 votes
q: Does it come with a charger?
a: yes it does.
By Trade Tested on
0 votes
q: How long do these batteries last and what is the cost of a replacement?
a: Run time can vary depending on conditions, but we have awesome feedback on these mowers with customers reporting one battery is more than enough for most regular laws and some requiring two for quite large sections. See our website for pricing on spare batteries and take a look at our reviews!
By Trade Tested on
0 votes
q: Are the wheels ballbearing wheels?
a: Hi, no they aren't.
By Trade Tested on
Customer reviews

Customer reviews

Overall rating

4.8 out of 5 stars from 38 reviews
Funagain Taranaki

Lawn Mowing fun again

8 days ago

2018-11-07 21:57:18

After upgrading from my older version battery operated mower to the Greenworks 40v brushless mower job gets done in half the time, it is so powerful I love this machine

Mickey G New Plymouth

Battery mower

11 days ago

2018-11-04 19:53:21

What a fantastic machine quiet efficient light and easy to use very impressed how it handles heavy lawns as well as light work with ease

Lisa Auckland


14 days ago

2018-11-01 07:45:00

Great mower! As good as a petrol mower, but so much more convenient, lighter and quieter. Battery still has plenty of charge left once the job is done

Malc Nelson

A Great Machine

18 days ago

2018-10-28 23:20:15

Great machine, so light and easy to get a great mow done. The auto 'speed up' when long grass is mowed is very clever. And no more petrol. Even the dog liked the quietness!

Dave Auckland

Good mower

18 days ago

2018-10-28 19:35:53

Bought this to replace an old petrol mower. Good power, although would be good if you could control when it powers up (for thicker grass). Would also be good if there was a slightly lower setting. Overall happy with the purchase. Looking at more greenworks products (hedge trimmer and chainsaw).

Rick Rangiora


21 days ago

2018-10-25 19:27:57

Awesome better than expected.

Greggs coffee Auckland


23 days ago

2018-10-23 20:00:17

Yes first day i got it i put it thru knee high lawns on a quarter acre section. Battery charged in under 2 hours and used it twice to cut long stubborn lawns. This thing has grunt and still cut the lawns down low and left them looking even and straight. Love this mower. Good steel body so a stone wont go thru the side. Light weight. I will never go back to petrol again...

Ed Auckland

Battery lawn mower

29 days ago

2018-10-17 20:11:52

Best mower for the job. Has options for mulching, dis charge and catcher out of the box. Powers through long wet grass. Battery life is great and use the same battery without re charging to line trim all the edges. Very happy with the purchase.

KJ Auckland

Greenworks lawnmower

about 1 month ago

2018-10-17 00:23:35

This is an excellent mower & has cut the time needed to mow extensive lawns in half compared with the petrol mower it replaced. The battery is fully charged within 2hrs compared with up to 8hrs with other brands

Jezza Canterbury

Greenworks Lawn Mower

about 1 month ago

2018-10-16 01:49:12

Purchased this mower recently and delighted with it. Love not having to muck around with petrol anymore and the achieves a great result on my medium sized section.

N/A Whangarei

Battery Lawnmower

about 1 month ago

2018-10-14 19:55:31

Great Mower, starts easy and cuts well. This is the first battery mower I have used and I would recommend them.

Skdmrk Northland

Great construction

about 1 month ago

2018-10-14 09:06:31

Machine works well, robust construction. If there was one thing that could be better it would be cut a bit lower, on lowest setting it is still quite high, otherwise can't fault machine

Yvonne Otago

lawnmower g-max

about 1 month ago

2018-10-13 22:03:08

fantastic mower, have uneven grass surface, and lots of it, large section, mows without problem I am impressed how long battery lasts, YAHOO no more petrol spills, or worse running out of petrol easy to start no pulling on a cord.... really quiet, eco friendly. recommend to all

Bri Wellington

G MAX 40V mower

about 1 month ago

2018-10-12 21:34:50

Great buy definitely worth buying,light easy start and does good job

Morri Manawatu

Great quiet mower with plenty of power.

about 1 month ago

2018-10-11 21:04:53

Great mower, is so quiet you barely need ear muffs....good for early morning mows that don't annoy your neighbours! We live in the country and have a very large area to mow, so for us we needed an additional battery. For most people the battery it comes with would probably be fine. The side mulch option is great and once you use an electric mower (no pulling cords to start, turns on and off as you need with no fuss) there's no going back! Totally recommended.

Bill Wellington

Greenworks mower

about 1 month ago

2018-10-11 21:04:16

Much better than my old motor mower, light, easy to use and lots less noise and mess.

Tirapelle Wellington

Powerful and light weight.

about 1 month ago

2018-10-11 20:05:29

It is a great Lawnmower, very strong, and easy to handle. Light and it knows when to use more or less power. Giving 4 stars and I have to charge the battery one time to finish mowing my lawn. ( *it is a big lawn )

Trish Bay of Plenty

Easy to use.

about 1 month ago

2018-10-01 20:12:43

Love the electric start. I have a 500m section handles a couple of mows easily on a charge. Lightweight and cuts grass well. It has made lawn mowing that much easier, no hassles with petrol and pulling to start. I also like that it has a much lower noise level.

Gail Southland


about 1 month ago

2018-09-19 21:04:51

Great lawnmower. Very light and easy to push. We are from southland and have no problems with it cutting our lawns

Venie Marlborough

Greenworks Lawnmower

3 months ago

2018-08-30 05:15:52

I have purchased the Greenworks lawnmower 1 month and a bit ago. I have used it a couple of times and I am quite pleased with the result. I only have a small lawn so the battery powered lawnmower works well. Big test coming as spring is around the corner :). I do like how the lawnmower powers up if you get into a thick batch of grass, and powers down when it is not as thick. One trick of new players. remember to push the button then pull the safety bar, and not the other way around. Otherwise it doesn't start and your wife looks at you in annoyance!

DB Tararua

Green works Lawnmower G Max 40

3 months ago

2018-08-23 20:13:22

Easy mower to use and practical for those like me find it hard to pull start petrol mowers. One push and you’re off.

Dan Napier

Fantastic mower

3 months ago

2018-08-21 19:35:03

Purchased this lawnmower because of positive reviews internationally. Certainly happy I did. I can comfortably mow my lawn (700m^2 section)and still have battery charge left. Very quiet and light making it easy to maneuver.

Ben Nelson

Good little mower

4 months ago

2018-07-26 04:13:23

Ticks all the boxes for our section, it’s the first electric mower I have owned and sure is easy to operate and store.

AB Auckland

Great mower!

4 months ago

2018-07-24 05:18:19

So far so good with this mower. The battery is enough for two separate mows (500sqm section) and it feels like it has a good amount of power. The mulching function is excellent, I can hardly tell I haven't used the catcher after mulching.

MowMeDown Wellington

Super sweet mower

4 months ago

2018-07-23 23:52:43

Owned for a month or so. First mow was slightly damp and fairly long grass and the G-Max just ate it up. The auto-speed controller kicks in when needed and the whole machine seems hassle free - no petrol or oil or farting about trying to get it to start, easy! The best feature has been the lack of noise, it doesn't frighten our toddler or require him to wear his earmuffs, so he's happy to 'help' with the mowing. The quality of the cut is superb and subsequent maintenance mows haven't taxed the motor at all, just a gentle hum. Managed the whole section on one charge, although we got a second battery for the line trimmer as well - which is also amazing, super powerful. Batteries are fast to charge. The ONLY thing I've noticed is that the wheels are quite hard so the ride is a little jolty but it's nothing a pair of leather gloves can't fix. So far so good on our pretty typical NZ section; fairly gnarly and rambling. While I'm at it, the TradeTested team have been great to deal with. Very happy customer.

Dane Auckland

Most practical mower for a suburban lawn

4 months ago

2018-07-22 20:56:24

Exceptional performance and features for the price. This mower has taken the frustration out of mowing our lawns. It's quiet enough that I can actually enjoy the time outdoors, and I can even hear the neighbour's mower over it. The standard 4.0Ah battery lasts through cutting the berms and our 650sqm section, and leaves a little juice to finish the edges with the line trimmer. Its lightweight, which means I don't work up a sweat when rushing to do the lawns quickly. It also means I can build a deck between the garage and front lawn, and just carry the mower over to the lawn. Storage is easy. No petrol, and the mower can be sat against the wall, without worrying about flooding.

Dee Canterbury

Good Choice!

4 months ago

2018-07-20 02:54:36

What a dream to start this rechargeable mower. It's quite a bit heavier than my old electric one but I no longer have to drag around a long power cord in order to cut my extensive verges so that's a definite plus. Three different grass discharge options is another great feature. It truly was a happy day when I saw the Trade Tested advertisement and be able to pre-order this wonderful mower.

PJ Auckland

GreenWorks lawnmower

4 months ago

2018-07-19 11:05:05

Excellent product.

Chris Whangamata

Outstanding Lawnmower!

4 months ago

2018-07-18 23:49:18

Way better than I thought it would be. As much power as my old petrol lawnmower and the battery lasts longer than what it takes to mow the lawn. When the mowing gets a bit tough it automatically revs up. No need to use the catcher unless the lawn is over grown, the mulching system works great. It's quiet, no petrol, no oil, no pulling, just press the button and go. Fabulous!

Green Lady Auckland

Frustration free lawn mowing!

7 months ago

2018-04-18 05:38:19

The GreenWorks lawn mower is so easy to use. With just a press of a button, pull back the lever and away you go. No petrol to worry about, no oil to run out of and no spark plugs to check. The cutting deck is as wide as my old petrol mower and gives a fabulous cut. I have 2 batteries and this allows me to cut all of my lawn in a little over an hour, which is about 10 minutes longer than the petrol version. I used to waste at least 10 minutes trying to start the petrol one or had to get someone to start it for me. This is frustration free lawn mowing for me. I am very happy with my purchase!

Mrs B Taranaki

Green works Lawnmower

7 months ago

2018-04-13 03:43:46

I am very happy with the new lawnmower. My husband sharpened the blades for me and I have enjoyed how light, yet sturdy it is. He thinks it lacks a little power, but I have been enjoying the ease with which I can cut the grass and enjoy a manicured lawn. The battery lasts long enough to do our average sized lawn and it is so much lighter and quieter than our old lawnmower.

Dave Otago

Awesome Machine

9 months ago

2018-02-27 21:03:58

After having no lawns for the last 12 or so years, I am absolutely sold on this mower, it's lightweight, and power really surprised me.Great!

Scottie Wellington


9 months ago

2018-02-24 18:46:14

An excellent mower which copes with my smallish lawn on 1 charge. Has a wonderful array of attachments to cope with users preferences. Being quite elderly I do find it quite heavy to handle but for a normal able person it's a breeze. Recommend as good value for money.

BRIAN Canterbury

green works mower

9 months ago

2018-02-19 22:15:11

best mower i have, had plenty of power, and battery life out standing

Manuel Wellington

Does what it should (most of the time)

9 months ago

2018-02-17 19:42:58

Generally a reliable and effective lawnmower. Battery life seems to be a bit weather-dependent, and sometimes a single battery charge doesn't cover our whole lawn (around 500 sqm), but after recharging there is never a problem. Apart from that, no complaints.

Annadel Rotorua

GreenWorks Lawnmower G-MAX 40V 460mm Brushless 4.0Ah Kit

9 months ago

2018-02-16 18:32:37

Really good value for money. It’s designed for well manicured lawns and does a really nice job

Vernon Waikato

great mower

9 months ago

2018-02-16 07:54:00

This mower has been a wonderful buy

Ian Rae Bay of Plenty


9 months ago

2018-02-15 22:09:09

Very happy with the lawnmower.Good service from Trade Tested. Every one should have one.Great machine.

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