Model#: GWKN29462

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Brand new items;Full manufacturer warranty available
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Greenworks 29462 G-MAX 40V 2 Ah Lithium-Ion Battery

  • Greenworks 29462 G-MAX 40V 2 Ah Lithium-Ion Battery
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Become more efficient when working in your yard with the Greenworks 40V G-Max Lithium-Ion Lawn Tool Series, the gas alternative solution you have been waiting on. This interchangeable battery platform offers all the tools you need to complete your yard work without sacrificing performance or power.
The innovative 40V G-Max Lithium-Ion Battery delivers longer run time, higher performance and more efficiency among all Greenworks G-Max Cordless tools. With a quick charge time of 60 minutes for a 2.0 Ah battery and 120 minutes for a 4.0 Ah battery this new Greenworks G-Max Cordless Series of lawn tools is a great option when looking to replace gas powered products. Featuring a simple snap on and off design for ease of use and innovative battery charge level indicator, Lithium-ion batteries offer no negative memory effect, consistent fade free power throughout its entire run cycle and up to 3x longer run time than NiCad batteries. From mowing and edging, to trimming and blowing, you can now complete your yard work with one battery platform that will provide you with the power and performance you need to get the job done quickly and efficiently. G-Max 40V Lithium-Ion batteries are compatible with all G-Max 40V Lithium-Ion tools.
  • New G-Max technology provides one power source for all new Greenworks G-Max tools for a complete lawn care solution
  • Provides longer run times than the standard Greenworks 20V 2.0 Ah Lithium-Ion battery
  • High performance 40V G-Max Lithium-Ion battery delivers fade-free power with no memory loss after charging
  • Simple and easy to use design snaps in and out of tool easily with battery charge indicator lights for power level check
  • Quick charge time of 60 minutes
  • Please Note: Compatible with G-Max Series 40V Greenwoks tools only (40V G-Max and 40V Lithium-Ion Batteries are not cross compatible)
  • G-Max 40V 2 Ah Lithium-Ion Battery - 29462
  • Owner's Manual


Series: G-MAX
Battery Amp Hours: 2 Ah
Battery Style: Slide
Battery System: 40V
Battery Type: Li-Ion
Compatible Chargers: 29482
Compatible Models: Greenworks 40V G-Max Series Tools
Recharge Time: 90 min
Voltage: 40V



4.1 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (6)
No, I would not recommend this to a friend (1)
Powerful (4)
Smallest G-MAX Battery option but does the job
I've got (3 4Ah batteries I've been using for the past 3 months in 5 tools and just recently got this 2Ah with the pole saw kit, so I was real curious as to how it would perform compared to it's big brother.

I'm really surprised how long it actually lasts in use. Got around 20-30 min of cutting with the pole saw and still had 2 bars (1/2 a charge) left.

Also used it in my 21" mower and 14" string trimmer to see how long it would last. It is a small yard (15-20 minutes of mowing) and was able to get all the mowing done as well as 15 minutes or so of trimming and still had 1 bar left ... impressive to say the least !!

This 2Ah battery is 1.82 lbs. where the 4Ah is 2.88 lbs. So for tools that don't need the amperage or for short jobs, this will be my go-to battery for the reduced weight.
August 21, 2018
Originally posted at
Cool Tool!
Have hedge trimmer that uses this battery. Performed really well. Latch button makes it real easy to replace batteries and into the charger.
September 14, 2016
Originally posted at
Yes, I would recommend this to a friend
Excellent battery and style.
Great product for the price!
August 8, 2016
Describe Yourself:
Beginner- Casual Do-it-Yourselfer
Yes, I would recommend this to a friend
Well made Tool
I am very happy with this tool. It is well balanced, and has the power to cut through small branches. I have used it several times now, and have no complaints so far.
July 21, 2016
Yes, I would recommend this to a friend
May 30, 2016
Yes, I would recommend this to a friend
Lighter weight for short jobs
Light weight, just right for short jobs. Charges twice as fast as the 4 Ah Model.
November 15, 2015
Yes, I would recommend this to a friend
"I would buy this product again
ON THE TOOLS THEY ARE FOR. AA++++++++++++++++++
July 17, 2014
Too much wizz not enough bang
Cant use it wont charge ! Waiting for a call or email to exchange?
June 24, 2014
Yes, I would recommend this to a friend
"Fast Charging"
I have owned a number of hedge trimmers of varying types over the years and bought the battery to go with the GreenWorks G-MAX Cordless Extended Reach Hedge Trimmer. As this is a review with regard to the battery, I have to admit that the charge from zero to full was impressive.
No, I would not recommend this to a friend
charges fast but it dos not last long
about 20 continuos use before you recharge
June 6, 2014

Questions & Answers

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Browse 8 questions Browse 8 questions and 8 answers
How many minutes will the G-MAX 40V batteries 29462 & 29472 continuously run in the extended reach hedge trimmer?
Debi on Nov 22, 2015
BEST ANSWER: Depending on the usage, the battery run time can vary from 15-40 minutes
Can this battery be used in g max leaf blower replacing 2901319 battery?
A shopper on Aug 9, 2017
BEST ANSWER: All 40 volt G-Max tools and batteries are interchangeable.
I have a greenworks 20v weed wacker, if I buy a 40v lawnmower are those batteries interchangeable?
Gcarveth on Jun 7, 2016
Where is this battery manufactured? USA? China?
donna on Aug 27, 2015
BEST ANSWER: The Greenworks model 29462 battery is made in China.
i have a b&d string trimmer 40v. will the g- max 40v 2 ah batt work in my weed wacker?also can i use my b&d charger?
Bud on May 28, 2015
BEST ANSWER: No, this battery is compatible with Greenworks 40 Volts G-Max Series Tools only.
Why does the battery capacity indicator not light on 40 volt 2.0ah?
chinadog on Oct 8, 2017
The battery I need is a 2.5ah 40 volt will this one work.? I can't find the 2.5ah
Stephanie R on Jun 29, 2017

New Vs. Reconditioned

What's the difference between New and Factory-Reconditioned?

Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
  • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
  • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
  • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 120 days.
Condition: New Factory Reconditioned
Features: Same Same
Specs: Same Same
Includes: G-Max 40V 2 Ah Lithium-Ion Battery - 29462,
Owner's Manual
G-Max 40V 2.0 Ah Lithium-Ion Battery - 29462-RC,
Owner's Manual
Availability: In Stock Out of Stock
Warranty: 1 Year 30 Days


Greenworks Warranty


When looking for lawn tools, we know you’re thinking about quality. You’re looking for something that will get the job done and get you back to your weekend. That’s why Greenworks backs tools with a four-year warranty (1 year on Pressure Washers) we know our products will perform at the highest level and always be reliable.


Greenworks products are protected against all defects under normal use for a period of four years (90 days for commercial use) from the shipping date. Pressure Washers carry a 1 year warranty.

Reconditioned GreenWorks products are protected against all defects under normal use for a period of 30 Days from the shipping date.

Greenworks can opt to repair, replace or issue a refund for products that are determined to be defective, or that have been damaged during shipping. Proof of purchase is required. Replacement of products or parts subject to normal wear and tear is the responsibility of the customer. If Greenworks accepts a return under Warranty, you can return the defective or damaged product only after you call and receive a Return Authorization from Greenworks. You also will receive a refund for your original shipping charges, and GreenWorks will arrange and pay for your return shipping charges. Lithium-ion batteries carry a two-year warranty against defects in workmanship and materials. Sealed Lead Acid batteries carry a one-year warranty against defects in workmanship and materials. Batteries must be charged in accordance with the operator’s manuals directions and regulations in order to be valid. See owners manual for warranty details.