Greenworks MO48L4210 Push Lawn Mower Review

The brushless motor starts with a button press.

You can mulch, bag the clippings, throw them out the side, or switch to Turbo when the grass is heavier. The 20-inch cutting width means fewer passes than a narrower deck, and the single lever moves the cut through 4 positions, which covers a close summer cut and a taller spring cut.

Buyers on Amazon most often praise how quiet it runs, and one customer notes being able to listen to music while mowing. That matters if you cut early in the morning or in the evening, and it keeps the neighbors happy.

The box holds everything you need to start: two 4.0Ah 24V batteries, a dual-port rapid charger and a USB hub. One buyer on Amazon also finds assembly simple and the mower easy to steer on small inclines, and the LED headlight helps when you mow in low light.

When the season ends, the handle folds and the mower stands upright to save floor space in a garage or shed. The warranty runs 3 years on the tool and 3 years on the batteries for household use.

Runtime is the headline limit. The 45-minute figure is a best case, and in real grass you get meaningfully less. Buyers on Amazon are divided on battery life: some report the two packs lasting 45 minutes to an hour, while others say they do not last 20 minutes. Tall, thick or damp spring grass shortens the run further. Treat this as the mower's defining trade-off rather than a defect.

There is no drive assist. On flat ground that is fine; on a slope you push the whole machine. The maximum slope is 15°, mowed across the face and never up and down.

Plan around the weight once loaded. The mower is 67.2 lb with the batteries in, which is the number that matters if you lift it into a truck bed or carry it up steps.

The bag fills quickly in long grass, and a full bag plus a clogged deck drains the battery faster. If you mow tall grass, empty the bag often.

There is no washout port, and the deck must not be hosed down.

Charging has a temperature window of roughly 39 to 104°F, which matters if the charger lives in an unheated garage or shed in winter.

Both batteries are needed to run, and the mower will not start on one. Runtime is also set by the weaker pack, so a half-charged second battery halves your run. That single rule explains most complaints about the mower dying too fast.

Read these figures together, because each one changes something in use.

• Cutting width of 20 inches: fewer passes than a narrow deck, more than a wide one.
• Cut height of 1.38 to 4 inches across 4 positions on a single lever: one setting for summer, a taller one for spring.
• Brushless motor with push-button start and an LED headlight: no cord to pull, and you can see the strip you are cutting in low light.
• Two 24V 4.0Ah batteries with a dual-port rapid charger included: both packs are required to run the mower.
• 45 minutes of runtime: a best case, as the limits above explain.
• 67.2 lb with the batteries in: the weight you move when you lift or carry it.
• Steel 20-inch deck with four modes: mulch, bag, side discharge and Turbo.
• 15° slope limit: mow across the face, never straight up or down.
• Warranty of 3 years on the tool and 3 years on the batteries, household use.
• Folds and stands upright for storage.

Runtime in practice varies widely. On a light weekly cut you can get close to 45 minutes; take off more grass and it drops; tall or wet grass gives you the least. That puts the mower at roughly a quarter acre or less per charge, mowed regularly.

A mismatched pair gives you the weaker battery's runtime, so a full pack paired with a half-full one cuts your mowing time in half.

The dual-port charger tops up both packs at once, so plan the charge into your routine instead of expecting a full lawn on a whim. The warranty covers 3 years on the tool and 3 years on the batteries for household use only, which is worth knowing before you buy. The two batteries, the dual-port charger and the bag in the box are what justify the kit's price against buying those pieces separately.