Greenworks vs Kobalt Cordless Lawn Mower: Which Battery Mower Wins in?

The Greenworks Pro 80V 21-Inch Self-Propelled Cordless Mower is Greenworks' flagship residential mower—the 80V platform that delivers gas-equivalent torque for the demanding conditions that lower-voltage cordless mowers struggle with: thick wet grass, tall overgrown lawns, and hills where self-propulsion motor load compounds the cutting load simultaneously. The 21-inch steel deck covers standard residential lawn widths efficiently, and the self-propelled drive reduces the physical effort of mowing for users on inclines or with large flat areas. The 80V battery platform provides approximately 45–60 minutes of run time on a fully charged battery—sufficient for most lawns up to 1/3 acre before requiring a battery swap or recharge. The brushless motor is more efficient than brushed alternatives, extending both run time and motor lifespan over years of seasonal use. Against Kobalt's 40V and 80V mowers on this page, Greenworks Pro 80V competes directly at the high-voltage cordless tier. Both brands are manufactured in the same Chinese factory for Lowe's (Kobalt) and independent retail (Greenworks), meaning the underlying platform is closely related despite different brand positioning. The differentiation is battery ecosystem compatibility with other tools in each brand's lineup, rather than fundamental performance differences between the two.

The Greenworks MO40L410 20-Inch 40V Cordless Push Mower is Greenworks' entry-level cordless mower—push operation (no self-propulsion), 40V platform, and the 20-inch deck appropriate for small to medium flat lawns where self-propulsion is less critical than for slopes or large areas. The included 4.0Ah battery provides approximately 40 minutes of mowing time on a full charge. At the entry level of the cordless mower market, the MO40L410 competes with Ego, Ryobi 40V, and BLACK+DECKER as the accessible starting point for homeowners who want to eliminate gas dependency without the upfront cost of high-voltage self-propelled models. The push operation requires user effort to move the mower, which is practical for flat lawns under 1/4 acre but tiring on inclines or larger areas. For homeowners with small, flat lawns (under 1/4 acre) who want a simple, quiet, gas-free mowing experience, the MO40L410 is the rational choice—lower upfront cost than the Pro 80V, no oil or gas maintenance, and adequate performance for the application. For lawns with slopes, thick grass, or larger area coverage requirements, the self-propelled 80V Greenworks or Kobalt models provide the power headroom that push mowing at 40V doesn't.