G-MAX 40V 20-Inch Twin Force Mower

G-MAX 40V 20-Inch Twin Force Mower
40V Battery Charge Time
40V Twin Force In-Use
40V Twin Force In-Use
G-MAX 40V 20-Inch Twin Force Mower
40V Battery Charge Time
40V Twin Force In-Use
40V Twin Force In-Use


Dual-Blade 20 Inch Cordless Electric Lawn Mower – 25302


Model Number: G-MAX 40V 20-Inch Twin Force Mower
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The 40V 20-Inch Twin Force Electric Lawn Mower Features At-A-Glance

40 Volt G-MAX    20inch Cutting Deck    2-in-1    5 Cutting Heights Automatic battery switchover

What Model Options do I have for this tool?

Model 25302 : G-MAX 40V 20-Inch TwinForce Mower
What’s in the Box? G-MAX 40V 20-Inch Twin Force Mower : Rear Discharge Bag : Mulch Plug : Isolator Key :  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: 40V Li-Ion 2Ah and 40V Li-Ion 4Ah battery along with compatible charger.
  • 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 1-3/8″ to 3-3/8″
  • 2-in-1 feature offer versatile use with mulching and rear bagging capabilities
  • Air flow tab on 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, 2ah and 4ah battery
  • 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
Safety Switch
Cutting Deck Width 
20 inches
Blade Length
Two(2)- 10 inch blades
Self Propelled Motor
Mulch Ready
Rear bag discharge
Wheels Sizes
10 inch rear : 7 inch front
Handle Material
Foam Padded
42.5 lbs
Weight with Battery
45.5 lbs
Compatible Battery
G-Max 40V 4Ah- Model: 29472 & G-Max 40V 2Ah - Model: 29462
Deck Material

User Manual (pdf)

Customer Support

To contact GreenWorks Customer Care, call our help line 1-888-90-WORKS (888.909.6757).

For 80V tool enquiries call our 80V PRO Customer Service Team 1-855-345-3934.

Our customer service teams will help you choose the right Greenworks product or help you with any issues you are having.