Greenworks 40V Cordless Lawn Mower Review: Quiet, Powerful & Eco-Friendly

Overview

Greenworks has built a strong reputation in the battery-powered outdoor tool space, offering an eco-friendly alternative to gas-powered equipment without sacrificing performance. Their 40V cordless lawn mower is the brand's flagship product — and one of the most recommended battery mowers in its price range. We tested it across a full mowing season on a half-acre lawn.

Key Features

40V 4.0Ah battery: Powers the mower through approximately 45 minutes of continuous mowing
21-inch cutting deck: Wide enough for medium to large residential lawns
7-position height adjustment: 1.5 to 3.75 inch cutting height range
SmartCut Technology: Senses load and adjusts power automatically
3-in-1 system: Mulch, bag, and side discharge in a single machine
G-MAX 40V battery compatible: Same battery works across 30+ Greenworks tools

Pros

Significantly quieter than gas mowers
No gas, no oil changes — press button and mow
SmartCut handles thick grass without bogging down
Battery life handles most medium-sized residential lawns
G-MAX battery platform means one battery for your entire tool lineup

Cons

Battery runtime may fall short for large lawns over 0.5 acres
Purchase price is higher than comparable gas mowers
Battery recharge takes 60-90 minutes
Not suitable for slopes over 15 degrees

Our Verdict

The Greenworks 40V cordless mower is the best battery-powered option for homeowners with lawns up to a half acre who want to eliminate gas maintenance and noise. The G-MAX battery ecosystem adds significant long-term value.