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Model#: GWKN29282

What are the different product conditions?

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

Greenworks 29282 40V 4 Ah Lithium-Ion Battery

  • Greenworks 29282 40V 4 Ah Lithium-Ion Battery
This item is no longer available.
It has been replaced by the GWKN29662.
  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.


The all electric operation of the Greenworks' line of tools provides not only reliable performance and dependability, but also offer a clean running alternative to gas powered tools as well. Each Greenworks' tool comes with a variety of performance and safety features that not only help you get the job done right, they also promise carbon emission free operation for a cleaner environment.
Greenworks' Lithium-Ion batteries provide consistent and reliable power to your cordless Greenworks tools, delivering longer run times, more charges and clean operation.
  • Provides longer run times than the standard Greenworks 40V 2 Ah Lithium-Ion battery
  • No memory effect
  • Maintains consistent power
  • Holds up to 2000 Charges
  • Battery charge level indicator
  • Note: 40V G-MAX and 40V Lithium-Ion Batteries are not cross compatible
  • 40V 4 Ah Lithium-Ion Battery - 29282
  • Owner's Manual


Battery Amp Hours: 4.0 Ah
Battery Style: Slide
Battery Type: Li-Ion
Compatible Models: All Greenworks 40V Cordless Tools
Voltage: 40V



5.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
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1 Star
Would you recommend?
Yes (1)
Powerful (1)
Yes, I would recommend this to a friend
Most Jobs on 1 battery
These batteries are great. I use them for my Trimmer and Chain Saw. The built in charge remaining lights are nice to have. I have been able to do most of my jobs on one battery, but I do have 2 spares if they are ever needed. The 40 volt battery really powers the tools, almost as good as a corded tool, with not cord to drag along.
October 18, 2012

Questions & Answers

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Browse 2 questions Browse 2 questions and 2 answers
can I use 40v lithium 29662 in all 40 volt greenworks tools including the g max tools Let me know thanks well
Gordo on Apr 23, 2014
BEST ANSWER: No, 40V G-Max and 40V Lithium-Ion batteries are not cross compatible.
Lithium battery

People who use lead bateries find whtkl teh products woeks well teh battery doewno take a charge aftere two years and needs tobe replaced.
HOw many years will a lithium batter y last. Do you have to maintain a charge in it over the winter.
Jack Bren
JWB on May 30, 2013
BEST ANSWER: Here are the specifications for this battery:
Up to 3x longer run time than Nicad battery
Quick Charging - 180 minutes for 4Ah
Maintains consistent fade-free power throughout entire cycle
Charge anytime, no negative memory effect
Longer life cycle: up to 2000 charge cycles
Battery charge level indicators for easy check of power level
There is no need to keep it charged over the winter months.


Greenworks Warranty

Double The Industry Standard

NEW GreenWorks products are protected against all defects under normal use for a period of (4) four years (90 days for commercial use) from the shipping date.

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. 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. 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.