Greenworks MO48B01 Push Lawn Mower Review

The MO48B01 is the model designation on the manual of a 17-inch, 48V push mower that runs on two 24V batteries. The manufacturer part number is MO48B2210, and the same 17-inch push platform has been sold under several SKUs over time, so retail listings disagree on small details such as weight, charge time, motor type and even the number of cutting-height positions.

Check the SKU and the included charger on the listing you buy from. This review covers the 17-inch push mower with two 4.0 Ah batteries and a dual-port charger, a rear bag and a mulch plug.

It is not the 21-inch self-propelled 48V mower of the same brand, a different and heavier machine. Much of what circulates online about a 48V battery mower of this brand describes that wider, self-propelled model, so read the deck size and the drive type before you assume a page is about this one.

The mower weighs about 42.5 lb and its handles collapse, so one person can move it, lift it over a step and store it in a corner. Buyers on Amazon most often praise its performance, and lightness and ease of use come up again and again; one customer notes it suits elderly users, and another mentions it works in hard-to-reach areas.

There is no gas, no oil and no pull cord: a button starts it, and it runs far quieter than a gas mower. The 2-in-1 system mulches and bags, and one buyer on Amazon singles out mulching as its strong point, with tall grass and weeds being cut at a slower speed and a higher setting.

The kit is usable out of the box: two 4.0 Ah batteries, a dual-port charger, the rear bag and the mulch plug. A single lever sets the six cutting heights from 1-1/4 in to 3-1/8 in, quick to change between seasons. The batteries are 24V packs from a large tool family, so they can be shared with other tools on that platform. The light build, the two batteries, the charger and the bag are what the asking price buys.

Runtime is the headline limitation. The mower offers up to 45 minutes of run time, and buyers on Amazon are divided on battery life: some report more than 30 minutes, others only 20. Tall, damp spring growth drains the packs fastest, and two 4.0 Ah batteries are a modest energy budget for a 17-inch deck.

Charging takes hours rather than minutes on the dual-port charger. The mower needs both batteries, and they must be charged to a similar level: one pack alone will not run it, and a weak pack drags the pair down. That is the usual cause of a mower that will not start or dies early.

There is no side discharge, only mulch and bag, which is a real constraint on heavy overgrowth. The bag is small and fills quickly in spring. It is push only, with a bail handle you hold the whole time, so hand fatigue matters for some users. The deck is plastic: light and rust-proof, but less forgiving of rocks than steel.

Durability draws mixed reports from buyers on Amazon, and some units fail early. The height lever can be stiff when new. The owner's manual sets a slope limit of 15 degrees, mowed across the face, and wet grass is out.

These are the figures that change how the mower behaves in your yard. Some listings quote slightly different numbers for other SKUs of the same platform.

The 42.5 lb weight is what makes the push design workable for one person, and the 15-degree limit is the point where you should stop and call someone else.

Mulching is where this mower earns its keep. The clippings come out fine and cover the lawn well, and tall weeds go down if you raise the deck and slow your pace. Bagging works too, but the bag is small, so plan on emptying it often in spring. In wet or very long grass the chute can clog.

Never take more than a third of the blade height in one pass. Damp grass is where the mower struggles, so wait for a dry afternoon. A 17-inch deck means more passes than a wider mower, and that is the trade for the light weight.

A charge lasts well under an hour, while a full cycle on the dual-port charger refills both packs over a few hours. A lawn at the top of the mower's range therefore needs a break in the middle, or a second set of packs.

A 17-inch deck at walking pace covers roughly an eighth of an acre in a charge under normal conditions, comfortably less in spring growth. A quarter acre is a stretch, and half an acre is out of the question.

Most will-not-start complaints trace back to one pack being flat or much weaker than the other. Seat both packs, make sure both are charged to a similar level, put the safety key in, then follow the start sequence.

Assembly is straightforward, but the instructions are picture-led, and the start sequence trips people up: safety key in, then the start button and the bail in the right order. The height lever may need a little persuasion at first.

The handles fold down and the mower is light enough to hang on a wall or tuck into a corner of the shed. Clean it with a dry cloth or a brush rather than a hose, and keep the batteries indoors between cuts.