Is it time to consider electric?

[Fuddyduddy1952]

So NOW...electric or petroleum?
Hmmmmm...let me think...

 

[Fuddyduddy1952]

I love that "recently cut grass" part! Grass has been cut...flat, level, 21 acres 8 hours...gotta love it.

 

[DarkBlack]

The “65HP gas engine equivalent” claim is farcical. Let’s just both agree that is simply ridiculous.

That’s some crafty sales marketing wording.
65HP is 48.5kw
Even discounting motor and controller losses, a 24 kwh battery could only supply that for 29 minutes, if charged to 100% and run flat to zero…which is never recommended. 100% to 20% would be only for 24 minutes.

Reminds me of the ridiculous HP ratings we’ve seen on past electric devices like shop vacs, with a little 600 watt electric motor , and a big “8 peak horsepower “ sticker.
Electric/electronic devices have had a long history of being allowed to advertise deceptive power ratings

 

[CliffordK]

Here we go!!! I just now chatted with Greenworks. Please read!!!View attachment 864980View attachment 864981View attachment 864982View attachment 864983View attachment 864984View attachment 864985View attachment 864986

Ok, interesting conversation. And, I doubt there is an easy and safe way to simply unplug the 24kWh battery pack. It is probably better on float charge.
$5K to $7K replacement would not be unexpected. Then again, in 5+ years, hopefully you've saved more than that in gas.
Prices will be changing over time. One question is whether the company will have long term support for their equipment.
In the EV and hybrid market, there are 3rd party companies that are rebuilding battery packs for much less than new replacement.

 

[Fuddyduddy1952]

Ok, interesting conversation. And, I doubt there is an easy and safe way to simply unplug the 24kWh battery pack. It is probably better on float charge.
$5K to $7K replacement would not be unexpected. Then again, in 5+ years, hopefully you've saved more than that in gas.
Prices will be changing over time. One question is whether the company will have long term support for their equipment.
In the EV and hybrid market, there are 3rd party companies that are rebuilding battery packs for much less than new replacement.

Let us know how it works out for you.

 

[CliffordK]

That’s some crafty sales marketing wording.
65HP is 48.5kw
Even discounting motor and controller losses, a 24 kw battery could only supply that for 29 minutes, if charged to 100% and run flat to zero…which is never recommended. 100% to 20% would be only for 24 minutes.

Reminds me of the ridiculous HP ratings we’ve seen on past electric devices like shop vacs, with a little 600 watt electric motor , and a big “8 peak horsepower “ sticker.
Electric/electronic devices have had a long history of being allowed to advertise deceptive power ratings

It is rare that a device will be run at constant 100% load. One of the reasons why many devices like welders have duty cycles.

And you don't want your riding mower to die every time you hit a tall clump of grass because you were running too close to the HP limit.

One of the issues with comparing gas cars to EVs is the difference in engine HP and power to the wheels. The electrics can push a lot more power to the wheels more efficiently.

If I was designing an electric mower, I'd have several small electric motors. Perhaps 3 or more deck motors. A couple of drive motors. Fewer belts, and a much simpler "transmission".

Likely the EV uses about half as much engine HP to get the same wheel and deck HP.

It is also possible that they use the Tesla model to have a ludicrous amount of under the hood HP, but with a low duty cycle. Nobody is doing pure repeated 0 to 60 acceleration.

A farm vehicle does need a certain amount of constant HP to the wheels or to the implement, so perhaps different.

 

[DarkBlack]

It is rare that a device will be run at constant 100% load. One of the reasons why many devices like welders have duty cycles.

Notice nothing in the specs about 65hp?
It’s, almost like some marketing guy….just made it up.

 

[shooterdon]

You can charge more if cutting with a battery mower. It is quieter and saves the planet. That $100 job with an ICE is now worth $250.

You have to think outside the box.

LOL

 

[CliffordK]

View attachment 864996

Notice nothing in the specs about 65hp?
It’s, almost like some marketing guy….just made it up.

Ok, so what the heck is an ETO?

I found on another site, perhaps for an older model: "Electric Take-Off (ETO™) Power Port for added versatility of front hitch power accessories"

There appears to be a front mounted receiver hitch.

So, that appears to be a power out port of some sort. Unfortunately I'm not seeing any accessories for the Greenworks Commercial mower. I'd expect at least an optional bagger. Perhaps they'd make one of those wheel type orchard and fence mower accessories.

It doesn't appear to be related to the actual drive power or deck power of the mowers.

 

[Coffee drinker]

I would love to see Hay Dude's new kubota and the electric mower go head to head with this discussion group present, on the same patch of grass after they have both seen 500 hours of service. Give them both 8 hours time and at the end of the day pay them both by the acres they did. Of course a guy would have to discount the kubota's acres by the percentage that the machine is bigger.
Mine prediction: Hay Dude buys everybody supper and the electric guy buys a new gas mower.