Greenworks 21" Pro 80V Cordless Lawn Mower w/ 4.0Ah Battery & Charger Expired

I need your input, how corded works interns of power? I'm using cordless.. I need do mowing multiple times because of battery.. for mowing we need find dry lawn, other it's stuck..

I cannot comment at all on this specific deal/mower, but since the gas vs electric question has come up, I'm addressing that.

Until this year I'd only had gas mowers my entire life. As a kid we had a lousy push Craftsman mower. We had a Honda snow thrower that was amazing so I convinced my father to buy a Honda mower (despite him working for a "competitor" to one of the Honda divisions) and that thing was ah-maize-ing. Ran forever despite us abusing it like crazy and yeah, suffice to say, I am a HUGE Honda small engine fan.

So when I bought a home a few years ago, it was a given I'd buy a Honda. Only, we "inherited" a lousy gas mower and I have this aversion to spending money I don't have to. So I lived with it. I hated it, but the thing refused to die.

Someone told me about a local (city/county) program that offers a $300 rebate for turning in a gas mower and buying electric one, and since I do like "free money" (yeah yeah, taxes etc. Got it.) plus I was pretty heavily invested in the Ego ecosystem, so I'd decided on an Ego mower.

Here's the part you might actually care about: it's a 1200w (dual blade) self-propelled mower with a 10Ah battery and my house has about 10,000 sq ft of grass overall. (1/3 of an acre corner lot with a LOT of park strip area as well.) That admittedly large battery leaves us with about 20% of juice left upon finishing the lawn thus far (bagging the clippings.)

The mower itself is fantastic. I've actually only mowed once this year because my wife likes it so much that she actually has asked to take that over due to the mower.

So when people say "don't go over [X] size of yard with an electric mower," I tend to disagree with that. I'd argue you should say "don't get an electric mower if you're not willing to buy enough batteries to allow you to mow it all at one time." And remember that things like a rapid charger and hills with self-propulsion can change things up for you. Also, make sure it's powerful enough to cut the grass like you like it OR be willing to adapt to cutting your lawn only when it's dry or more frequently.

We can put a spacecraft on mars and fly a drone there but we can't come up with a battery that lasts for any darn thing.

If you live in an area with a 4-6 month mowing season...yes.

If you live in a 11-12 month mowing season NO.

We can put a spacecraft on mars and fly a drone there but we can't come up with a battery that lasts for any darn thing.

These threads are always gas vs electric and more often than not, people who buy electric and wonder why they have to mow their lawns in phase. You either take a break to recharge battery, buy more batteries or stick with traditional gas powered. Keep it simple people.

If you take care of the batteries, they should remain usable (meaning, maintain enough charge to get the job done) for several years. I had a shitty 36V Black & Decker model that I purchased in 2011, and just retired a few weeks ago (treated myself to a new Greenworks 60V with 2x4Ah batteries). Never replaced the B&D battery, and while the total runtime did drop over the years, that thing was still usable even at the end. I could finish my 1/3 acre on about one and a half charges. Or a single charge, if I was particularly quick/efficient and had mowed recently enough such that the grass wasn't super long.

When I say "take care of the batteries" - don't run them down until completely discharged. At the end of the season, don't leave them outside. Keep them indoors until the weather warms up and you need them again. Give 'em a charge every couple of months while they're in storage.


If you're replacing your batteries every 2-3 years, you're doing something wrong. They should retain a usable charge much longer than that. Regarding corded: I used one of those for a couple of seasons just prior to purchasing the aforementioned B&D. It got the job done, but managing the cord made me absolutely mental - particularly since my lone outdoor outlet is nowhere near the furthest corners of my oddly-shaped yard. Never again. NEVER AGAIN.


As above: if you're replacing batteries every two years, you're doing something wrong.

do these go any cheaper as we get into the mowing season?

I doubt it, but can anyone compare this to an Ego electric mower?