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GreenWorks G-MAX 40V 4.0Ah Li-Ion Battery

Pre-order now, stock arrives 15 Feb
or 4 payments of $47.25 on
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Product overview

The GreenWorks G-MAX 40V lithium-ion battery system delivers longer run time, higher performance, and greater output among all GreenWorks G-MAX tools.

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.

• 4.0Ah, 40V Lithium-Ion battery
• Compatible with all products within the GreenWorks 40V range
• Fast charging
• No memory effect
• No self-discharge
• One GreenWorks G-MAX 40V battery powers all Greenworks 40V tools
• 3 Year Greenworks Battery Warranty

Product code: 2927007
Model: G40B4
Voltage: 40V
Charging time 100% (4Ah): 120mins
Battery pack capacity: 4Ah
Watt hours: 144Wh
Weight: 2kg

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Questions and answers

0 votes
Will this battery operate the 18V LI-ION Hedge trimmer and the Blower Vac G-Max 40V LI-ON?
This will only operate 40V.
By Trade Tested on December 29 2021
0 votes
Yes it will.
By Trade Tested on November 15 2021
3 votes
How many discharge cycles is it rated for?
Up to approx 2000.
By Trade Tested on January 20 2020
See more questions and answers (3)

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All reviews (72)

Read reviews that mention

  • one battery
Know I can do everything

Bought the mower/line trimmer combo. Know I can do both jobs without waiting for battery to charge

Myk Gisborne
49V battery

Bought as extra for lawnmower. Is very good the lawns were very long so needed the second battery first time up and good to have a spare as just need a little bit more than the one battery to do my whole lawn

Rae North Shore Auckland
Alex Wright

Bought second battery as couldn't finish lawns with just one. Second battery better that the first - completes whole lawn with one charge

- Auckland
Great battery

I am really happy with this battery, the lawnmower and the weedeater that we have bought. I wasn't sure about GreenWorks as a brand, but now that I have this kit I am really happy with the look, performance and ease of use. I will definitely buy GreenWorks again and from Trade Tested who have always been great to deal with.

Kiwifulla Wellington
40v Battery

would recommend purchasing two of these batteries when buying lawnmower as it is frustrating when power packs up before the lawn is finished. Extra battery solves the problem and is handy to have for the hedge trimmer.

steady Eddie Northland