Greenworks Pro 80V 21in Review

Introduction: Why I Chose the Greenworks Pro 80V 21in

After years of wrestling with gas mowers, I was ready for a change. My old Toro was reliable, but the noise, the smell of gas, and the annual carburetor cleaning had worn me down. I started looking at battery-powered options, and the Greenworks Pro 80V 21in kept popping up in my searches. What caught my attention was the price point. Most 80V mowers with a battery and charger included cost a premium. This one felt like a steal. I am a YardToolLab editor, but before that, I am just a guy with a quarter-acre lawn who wants to mow without a headache. I ordered the Greenworks Pro 80V, unboxed it, and put it through a full season of mowing. This is my honest, first-person review.

How I Tested It

I did not just run it over a patch of grass and call it a day. I used this mower for three months, from early spring through late fall. My lawn is about 8,000 square feet of mixed fescue and bluegrass. It is not perfectly flat, and it gets thick in the spring. I mow at the highest setting in summer and lower in spring and fall. I tested the Greenworks Pro 80V on dry grass, damp grass, and even a few patches of overgrowth I let get away from me. I also tested the battery life by timing each charge cycle and noting how much lawn I could cover before the battery died. I compared it side by side with a gas mower and a lower-voltage battery mower to get a real sense of the difference. I did not use any lab equipment. I used my watch, my eyes, and my ears.

Performance: Cutting, Power, and Battery Life

Cutting Quality

The first thing I noticed was the cut quality. The 21-inch steel blade is sharp and stays sharp. On dry grass, the Greenworks Pro 80V leaves a clean, even cut. No torn tips, no ragged edges. It handled my fescue well, even when it was a bit tall. The mower has seven height adjustments, from 1.5 inches to 4 inches. I found the middle settings work best for my lawn. The mulching capability is solid. It chops clippings fine enough that they disappear into the grass. I did not have to rake or bag most of the time. The rear bag collects well, but it is not huge. I had to empty it twice for my 8,000 square foot lawn. That is normal for a 21-inch mower.

Power and Torque

The 80V motor is strong. It does not bog down in thick grass as much as I expected. I pushed it through some damp, heavy patches, and it kept going. It is not as powerful as my old gas mower. If you have a jungle out there, you might need to go slower. But for normal residential lawns, it has plenty of torque. I did not have to baby it. The self-propelled version is not what I tested. This is the push model. I prefer push mowers for the exercise and control. The mower rolls smoothly. The wheels are 7 inches in the front and 10 inches in the back. That is a good size for bumpy lawns. It did not get stuck on small rocks or roots.

Battery Life: The Real Story

Here is the honest truth. The battery life is the biggest limitation. Greenworks claims 45 minutes of runtime. In my testing, I got about 40 to 45 minutes on a full charge with the grass at a normal height. That is enough for about 6,000 to 7,000 square feet, depending on grass thickness. For my 8,000 square foot lawn, I could not finish in one go. I had to recharge the battery to finish the last bit. That takes about 60 minutes. So, my total mowing time was about 90 minutes with a break in the middle. That is not bad, but it is not a one-and-done deal. If you have a smaller lawn under 6,000 square feet, you will be fine. If you have a larger lawn, you need a second battery. That is an extra cost. The battery is a 2.0 Ah unit. It is lightweight and easy to swap. I wish Greenworks offered a 4.0 Ah option in the box. But for the price, I understand the compromise.

Build Quality and Value

The Plastic Deck Debate

Let me address the elephant in the room. The deck is plastic. I know that is a con for many people. I was skeptical too. But after three months of use, I have to say it is not as bad as I feared. The plastic is thick and rigid. It does not flex when I push it. It is lighter than steel, which is a huge advantage. The mower weighs 45 pounds. That is about 20 pounds lighter than a comparable gas mower. I can lift it into my truck bed without straining. I can maneuver it easily around flower beds. The plastic deck does not rust. That is a big plus. However, I do worry about long-term durability. If I hit a large rock or a stump, the plastic might crack. I have not had that happen yet. But if you are rough on your equipment, a steel deck is safer. For most homeowners, the plastic deck is fine. It is a trade-off for the weight savings.

Value for Money

This is where the Greenworks Pro 80V shines. It comes with the battery and charger included. Many competitors sell the mower alone and make you buy the battery separately. That can add 100 to 200 dollars to the total cost. Greenworks includes everything you need to start mowing. The price is competitive with mid-range gas mowers. You get the benefits of electric: no gas, no oil, no spark plugs, no pull cord. You just push a button and go. The mower starts instantly every time. No warm-up, no choke. That alone is worth the price for me. Over a season, you save on gas and maintenance. The battery can also be used with other Greenworks 80V tools, like trimmers and blowers. That adds value if you are already in the ecosystem.

Noise Level

I have to mention the noise. It is quiet. Really quiet. My gas mower was loud enough to require earplugs. The Greenworks Pro 80V is a whisper in comparison. I can mow in the early morning without waking the neighbors. I can listen to music or a podcast while I mow. That is a quality-of-life improvement I did not expect. The motor has a high-pitched whine, but it is not annoying. It is just noticeable. If you value peace and quiet, this mower delivers.

Who Should Buy the Greenworks Pro 80V 21in?

This mower is not for everyone. Let me break it down.

• You should buy it if: You have a small to medium lawn (under 7,000 square feet). You want to get rid of gas and oil. You value a lightweight, easy-to-maneuver mower. You are on a budget and want a good value. You do not mind charging the battery once or twice per mow. You want a quiet mower for early mornings or late evenings.
• You should not buy it if: You have a large lawn (over 10,000 square feet) and do not want to buy a second battery. You are hard on equipment and need a steel deck. You need to mow very thick, wet, or overgrown grass regularly. You want a self-propelled model. You need to finish your entire lawn in one continuous session without a break.
• Consider an alternative if: You want a mower with a longer runtime out of the box. Look at the Ego Power+ line, which offers larger batteries. But expect to pay more. If you need a steel deck, Toro or Honda gas mowers are still the standard. But you lose the electric benefits.

My Verdict

After three months of testing, I can say the Greenworks Pro 80V 21in is a fantastic mower for the right person. It is not perfect. The battery life is the biggest drawback. But for the price, including the battery and charger, it is an outstanding value. The cut quality is good. The weight is excellent. The quiet operation is a game-changer. I have not missed my gas mower at all. I have saved money on gas and maintenance. I have not had to clean a carburetor or change a spark plug. I just push a button and mow.

If you are on the fence about switching to electric, this mower is a great entry point. It does everything a homeowner needs. It is not a commercial-grade machine. It will not replace a heavy-duty gas mower for a pro landscaper. But for the average person with a normal lawn, it is more than enough. The plastic deck is a concern for long-term durability, but I have not seen any issues yet. I will update this review if that changes. For now, I recommend it.

My final score is a solid 8 out of 10. It loses points for battery life and the plastic deck. But it gains points for value, weight, ease of use, and quiet operation. If you can live with the runtime, you will love this mower. I do.