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GreenWorks 25302

G-MAX 20" 40V Cordless Twin Force Mower, (2) Batteries, Charger

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  • Features & Benefits
  • Specification
  • Media
  • Reviews
  • Manuals

The Figures At-A-Glance

What Model Options do I have for this tool?

Model 25302 : G-MAX 40V 20" TwinForce Mower
What's in the Box? G-MAX 40V 20" Twin Force Mower : Rear Discharge Bag : Mulch Plug :  4Ah Battery : 2Ah Battery : Charger : Owner's Manual

Features & Benefits

  • Powerful G-MAX 40V Li-Ion Systems delivers greater efficiency with up to 70 minutes of run time with included batteries
  • 20-Inch cutting deck offers a great balance of maneuverability and cutting capacity making it ideal for mid-sized areas
  • Innovative SMART CUT technology adjust for power or runtime based on the thickness of your grass
  • Dual blades offer better cut quality, superior mulching and bagging capabilities
  • Automatic battery switchover pulls power from the second battery once the first is depleted to eliminate downtime
  • 5 position single lever height adjuster allows for a cutting height range of 1-3/4" to 3-3/8"
  • 2-in-1 feature offer versatile use with mulching and rear bagging capabilities
  • Hard top rear bag indicates when the bag is full and needs to be emptied 
  • Easy Fold System for storage or compact transportation
  • 10" rear wheels and 7" front wheels make it easy to maneuver through any range of terrain
  • Includes two 40V batteries and a charger
  • Use with (2) G-MAX 40V 4 AH Li-Ion battery for up to 90 minutes of runtime
  • Compatible Only with GreenWorks G-MAX 40V Battery Models 29462, 29472 and Charger 29482
Product Includes
Twin Force Mower : G-MAX 40V 4Ah Battery : G-MAX 40V 2Ah Battery : Charger : Rear Discharge Bag : Mulch Plug : Owner's Manual
Cutting Deck Width
20 inches
Cutting Height Range
1 3/4 - 3 3/8 inches
Height Adjustment
5 position, single lever
Mulch Ready
Rear bag discharge
Deck Material
Handle Material
Foam Padded

Product Videos

  • G-MAX Twin Force 30sec Spot
  • G-MAX Twin Force Instructional

Product Images

Customer Reviews

Gives a beautiful cut
By tim lenton. On Feb 18, 2014

This mower works fine and gives a nice, even, beautiful cut to my front lawn. After fully charging I cut my front lawn with nearly a full charge still left on the battery. (All four battery indicator lights still come on.) It does a great job. It is a clean looking mower that gives a beautiful clean cut.

Easy to clean without water. I simply brush the clippings off above and below and pull and empty the mulching insert. Also, I should say that the compact design with the easy folding, fold down handle stores well in my small one car garage.

Once you go cordless you never go back
By tim lenton. On Feb 05, 2014
I have no complaints about this mower. Granted, I do not have a large yard, but the mower easily handles it on a single charge. I also used it to mulch my leaves this autumn. It is quiet, and well worth the price considering you do not have to deal with gasoline, pulling the cord of a motor, or electric cords.

User Manual (pdf)

Customer Support

To contact GreenWorks Customer Care, call our help line 1-888-90-WORKS (888.909.6757) Monday - Friday 9am to 5pm EST or fill out the web form

Our customer service team will help you choose the right Greenworks product or help you with any issues you are having. Please allow up to 24-48 hrs for email response.