GreenworksPro 80V 21-Inch 80V Push Lawn Mower, Tool Only

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5/26/2016 Update: I have been using the mower for almost a month and am still very happy with my purchase. I was able to mow my yard 5 times before charging the 4AH battery for the first time and it was fully charged in less than 60 minutes. The lawn looks great and the mower does a great job even as the lawn gets thicker after going through the spring fertilization. The motor will rev up in higher grass but I have had no issues cutting through the taller grass. It is nice to not have to deal with gas or oil and just push the button and pull the handle back to start. I continue to be happy with my purchase and strongly recommend this model if you want a quiet and light weight electric mower.Original Review: I am very happy with this purchase so far and I have used it to mow the lawn twice now and it worked very well. I have a very small yard so I have been able to mow the yard twice and the battery is now down to two status lights versus three so I should easily be able to get 4 uses before recharging. I was lucky to make this purchase as well as the chainsaw and charger/4ah battery during a deal of the day special so I am very happy with my purchase.It does a great job cutting the grass and the mower is very light and stores easily. I am in the process of cleaning and setting up new storage options in the garage and am looking at options to hang this on the wall for the winter. It is nice to not have to deal with gas/oil or challenges starting for the first mowing of the Spring. You can just push the start button and pull back the handle and it is off and running. I do like the one handle height adjustment and it works very well for quick adjustments versus my old mower where each wheel had to be adjusted independently.I was worried at first about the incline in my front yard and not having a self propelled option but it is so light and easy to use that you really don't need a self propelled option. I am not sure how well it will work in the Fall when I have leaves to deal with but so far it has cut through the grass without any issues and the motor does rev up in higher grass but still cuts right through it. I do think if the grass is exceptionally high after a good rain or if I miss cutting it for a few days longer than normal that I might have to adjust the deck up and do two passes but given the limited grass that I have to mow I don't think that will be an issue. So far I am very happy with the purchase and I will update the review later in the season after more use.

A bit of background about me, I love electric vehicles for their low maintenance and quiet operation, so I have been changing over to electric for most of my devices.I am "upgrading" from the TwinForce mower from Greenworks, only since I gave that mower away so I could have all the same batteries. The main improvement to this mower over the TwinForce is build quality. It has nice steel deck, better plastics, and sturdier axles/wheels, and overall heavier duty.Warning: Be careful which version you buy, one doesn't have any batteries or charger with it. This is perfect if you already have those from some other device. For a standard 0.2 acre lot, you will want 2 of the 80 V 2 Ah batteries or 1 of the 4 AH batteries. I recommend 2 of the 2 Ah batteries since you can charge one in the rapid charger in the time it takes to burn through the other, so you can be constantly mowing and charging if you need more than 2 full charges.Setup: This mower was a breeze to setup, basically attach the handle. I am not using the bag or side discharge, the mower does an excellent job mulching.Use: The mower is 1 inch wider than my TwinForce, which might not seem like a lot, but if you consider the practical mowing distance is less than the 21" blade, the 1 inch makes a big difference. I would say I make 10% fewer passes. The weight is heavier, about the same as a gasoline push mower, but not bad. I do notice it is a bit more exercise to mow. In the summer I have to mow at the highest cut setting, which is barely high enough.Performance: The mower has excellent power, feels more power than my gas mower, and it does a great job mulching. Better than either the TwinForce or the gas mower I had. I accidentally chopped cleanly through a large 1" stick laying in the yard that I missed, although that triggered the motor to stop, it didn't do any damage and restarted fine after I checked the blade.The big drawbacks vs the TwinForce are that it only uses a single battery, meaning I have to swap batteries midway through my mow, and that it weighs a lot more. Also, the height doesn't seem to adjust up quite as high.Batteries: The 80 V 2 Ah batteries are rated at 146 Wh, and last about the same as the old 40 V 4 Ah batteries (also rated same amount of power), but I think the mower is more powerful and more efficient. The best part is the rapid charger, which takes only 20 minutes to charge a battery most of the way, meaning you can mow pretty much non-stop if you have two batteries and swap them. It also has a cooling fan on it to keep the batteries from getting too hot. A point with Li-ion batteries, is they prefer to be stored at cool temperatures and at a low state of charge. Despite what the directions might say, you are better off to store the batteries nearly dead after mowing and charge before you mow the next time. Read up on Li-Ion storage at Battery University. This is where the quick charger is a huge benefit, just go pop the battery in the charger 30 minutes before you want to mow.Basically, this mower replaces a premium gas push mower (not self propelled). It is a bit expensive, and for a better deal get one of the older TwinForce or other 40 V models, but this unit is also well worth the cost and feels a little less disposable than the other units. I wouldn't have upgraded if I wasn't trying to make all my devices use the same battery, but this mower is great if you are just looking at testing the electric mower waters. If so, be sure to buy one with a battery.

I purchased the combination of this mower without a battery and a 4.0 AH battery. The combination was less expensive than buying the two items combined as a single product. My savings was around seventy dollars. It is important to point out that I already had a charger after buying a snow blower last year that was also the same brand and had an 80 volt 2.0 AH battery included. So I now have two batteries which will allow one to charge while the other is in use.Assembly: At first I was wondering why assembly instructions were not included. Then after putting the few pieces in place, I realized the paperwork was inside the battery compartment. Assembly was pretty much just putting the handle in place. One nice feature is the handle retention pins. These are spring assisted to seat the pins in place, but the piece can be pulled and rotated if a person wants to store the mower with the handle folded. It's clever because no parts are actually detached which could lead to getting lost.The performance of the mower is great. It senses when there is increased resistance (from taller grass) and will apply extra torque to power through. There is one lever that controls the height of all four wheels. Beware that from the factory, it most likely will be set to the lowest deck height so you could scalp your lawn if not careful. The mulching feature works just as expected. When using the rear bagger, a plastic piece needs to be pulled out that otherwise blocks the opening. This piece is designed well and has a post which serves as a convenient handle for ease of removal and insertion. The bag has metal hooks that go over a metal bar which should mean there won't be any failure in that area. The bottom of the bag has a plastic floor. The nice thing about that is it keeps the bag rigid and makes it difficult to run over the bag when backing up. (only made that mistake once with a previous mower) There is also a strap on the back of the bag which makes dumping and shaking the bag an easy process. I haven't tried the side discharge attachment feature, but have no reason to suspect it wouldn't work.The machine is much lighter than the gas mower that was used previously. It is easy to push around, so a self-propelled unit would be overkill for most people. Pushing it up inclines is not a challenge. The mower almost fells too light at times, but the metal that the deck is made from doesn't appear to be too thin.If you are ready to replace gas with uncorded electricity, this is the way to go.When comparing different mowers be sure to pay attention to the voltage of the mowers (40 V or 80 V) and the Ampere Hours of the batteries (2.0, 4.0, or 6.0).

[4/13/2016 update]Mower was light enough to lug it down alone to the basement for Winter, and back up for Spring. Absolutely no preparation needed (no gas burn off, stabilizer, spark plugs, filters, etc.), aside from blowing off old grass clippings and covering for dust (cover interchanged with snow blower).The 2 Ah battery just barely lasts my 1/4 acre mowing, so I'd recommend purchasing a second 2 Ah or 4 Ah battery to swap between. I now use the 4 Ah (bought a week after the mower) in the mower, leaf blower, & snow blower (bought this past winter and also works great), and the lighter 2 Ah battery for the string trimmer & hedge trimmer. I now have the entire GreenWorks 80V line, except the chain saw. My corded Toro leaf blower stays in my basement, and I sold off my gas 2-stage snow blower in December.---[5/18/2015 original review]I've been holding off on purchasing this until the 4Ah battery bundle became available, but the monkeys swinging across my lawn jungle forced my hand. I decided to just use the 2Ah battery that I already had for my GreenWorks 80V leaf blower.The shipping weight is 72 pounds (mower-only package), but the box was light enough to carry by myself. Packaging is minimal, yet sturdy, with cardboard spacers. The box contained the mower, handle bar extension, manual booklet, and quick-start sheet.The only assembly required were 1) attaching the handle bar extension using 2 bolt/knob combos and 2) snapping on the right-side mulch discharge chute. Alternatively, you can leave off the side chute, pull off the rear mulching block, and attach the clippings collection fabric bag. The entire handle assembly is adjustable to 3 heights using the pair of built-in 90-degree twist knobs. There’s also a lever to adjust to 7 different cutting heights.To prepare to mow, simply lift the battery cover flap on raised protrusion on the center-top of the mower, push in the battery until it clicks into place (release button is used when removing the battery), then lower the flap.No messy, smelly gas or oil needed. No nauseating exhaust! The electric motor is far quieter than a gas engine; my toddlers fell asleep fine during my mowing. There’s none of the headaches of maintaining a gasoline engine: buy/store/pour jugs of gasoline, buy and keep engine oil topped off, buy fuel stabilizers, deal with spills, clean/replace spark plugs, burn off excess gasoline for off-season storage, etc.To turn on, you push and hold the green button on the upper-right of the handle, then grasp the green lever arm together with the handle bar, then let go of the button. When you release lever, the mower turns off completely; there is no idle. To restart, you’ll need to repeat the hold-button and grasp-lever routine. There is no cord-yanking involved.The mower is very easy to push (note it’s not self-powered), so I speed-walked most of the time. It’s easy to turn 180-degrees for parallel mowing. The blades cut very near to the outer edge of the wheels (see attached picture), so there’s minimal need for overlap. There’s a rubber rear skirt to protect you from any rock or debris projectiles, which is a godsend for my yard, full of landscape stones and sweet gum tree spike-balls.The 2.0Ah battery from my leaf blower had plenty of power to mow the ¼ acre of greatly-overgrown grass and weeds (yesterday 5/17 was my first mow of the season), then power the blower to clean the mower. It’ll probably still have enough power for the string trimmer (on backorder), but I plan on buying either the 4.0Ah battery once it’s available or another 2.0Ah.For storage, the handle bars easily fold over at the base for fast, compact storage. I actually have my mower resting vertically in the garage for maximum space savings (see my first picture). I feel it’s also light enough for most people to carry it to the basement for winter storage.I’m very happy with the 80V mower and leaf blower so far. This Fall, I plan on selling my 24” gas snow thrower to replace with a GreenWorks 80V model as well.