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Model#: GWKN29472

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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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 29472 G-MAX 40V 4 Ah Lithium-Ion Battery

  • Greenworks 29472 G-MAX 40V 4 Ah Lithium-Ion Battery
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  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.


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 4.0 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 120 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 4 Ah Lithium-Ion Battery - 29472
  • Owner's Manual
Compliance and Restrictions
warning: Cancer and Reproductive Harm --


Series: G-MAX
Battery Amp Hours: 4 Ah
Battery Style: Slide
Battery System: 40V
Battery Type: Li-Ion
Compatible Chargers: 29482
Compatible Models: Greenworks 40V G-Max Series Tools
Recharge Time: 2 Hours
Voltage: 40V



4.5 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (12)
Powerful (9)
Don't charge these with a low power inverter.
This batter replaced the 5 year old one I trashed trying to charge it with a small inverter while driving to a work site. Both my mower, chain saw, and pole saw run on these. They work really well, and hold up over time too as long as they are properly charged.
June 6, 2019
I made this purchase with the environment in mind. This was the green solution I was looking for and up to now I am satisfied. I purchased 2 more batteries, because of a large grass area and I also purchased the trimmer using the same battery. Happy customer. G
May 23, 2017
Run time is horrible
I bought the Blower Model number 2400802 and this battery came with it... I thought I must have gotten a bad battery when it kept running out quickly. I called the service hotline because they tell you how long it takes to charge (actually they tell you 75 minutes one place and 60 minutes somewhere else) they never tell you how long it will run for. Turns out it is only 20 mins... not enough time to get what I need done. I would NEVER buy this again.
May 5, 2017
Fast delivery CPO is grate to work with, Battery holds good charge when used is all tools that work with the Green works 40V
April 18, 2017
Yes, I would recommend this to a friend
The only way to go, the larger capacity battery,
long lasting, powerful, and worth the difference inn price over the less costly battery. Highly recommend and would buy again, thanks to Tyler Tools and their helpful, knowledgable staff.
August 9, 2016
Yes, I would recommend this to a friend
Great Product
This G Max battery contains twice the power of the standard 40 volt battery, giving twice the working time. A big advantage when you've got a lot to do.
July 24, 2016
Yes, I would recommend this to a friend
Awesome second Battery!
I wish I would have known about the free shipping for signing up for their email list.
July 18, 2016
Yes, I would recommend this to a friend
Great battery
Power for a 12" chain saw. I'm amazed at how long it lasts considering the drain from a chain saw.
July 4, 2016
Quick shipping. It bad only 1 season on original.
This is a replacement battery for a Greenworks lawn trimmer. Love the weight of the trimmer. Disappointed battery didn't last longer. Hope this new one does.
I would order from this company again. I received battery with just a few days. A
June 29, 2016
Yes, I would recommend this to a friend
Good but over necessary
Purchased a few Greeworks tools, batteries are fine but the devices do eat through them. Tools work great, but not the best choice for a larger lawn.
May 31, 2016

Questions & Answers

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Browse 6 questions Browse 6 questions and 8 answers
Are all Greenworks 40V devices compatible with each available 40V battery and with each 40V charger
Lloyd on Jun 26, 2016
BEST ANSWER: Yes. I own a G-Max 40v chainsaw, grass cutter (weed eater), blower, and
hedge trimmer, and they are all powered by the same G-Max 40v battery.
I have a blower. It has a 20 watt battery which has not lasted that long. Can I use a 40 w max? Will it give me moe power and last longer. I put my 20 w on the charger over night and it blue wa about 4 min. and dies.
DEL on Mar 22, 2015
BEST ANSWER: I have the 40v blower/vac as of yesterday. I could only do 1/4 of my yard on 1 battery. They are 29472_146Wh and 29462_73Wh. I got half of the front yard blown, now I sit around and charge again??? I'm very disappointed! I can mow the front and back yard with one charge. The blower just sucks! No pun intended.
Will this item work with the Craftsman electric mower model#138.98818? Sears has discontinued the mower and most of the accessories and I have been trying to find a replacement battery.
Peter on Jun 5, 2016
BEST ANSWER: Greenworks is not interchangeable with other brands
I have to stand the charger up in order for my battery to charge. I haven't been able to start cutting my grass. I have only had it 3 days. Why is that
Deborah on Jul 6, 2015
BEST ANSWER: It sounds like there is a short in the charger, you can contact Greenworks directly at 888-909-6757
I have to stand the charger up in order for my battery to charge. I haven't been able to start cutting my grass. I have only had it 3 days. Why is that
Deborah on Jul 6, 2015
BEST ANSWER: It sounds like there is a short in the charger somewhere. You can contact Greenworks directly at 888-909-6757 for technical assistance
"I had purchased your Model 24102 40-volt Lithium-Ion cordless blower. Will I be able to use the Greenworks 40V 4 Ah Li-Ion Battery 29462 & 29472
batteries with this blower. If not please suggest which model i should go for Thank you."
deep on Apr 22, 2015
BEST ANSWER: No, model 24102 is a standard 40V blower, and the batteries you listed are part of the G-Max series. The standard 40V is not compatible with the 40V G-Max batteries

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 4 Ah Lithium-Ion Battery - 29472,
Owner's Manual
G-Max 40V 4.0 Ah Lithium-Ion Battery - 29472-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.