Greenworks H.O.G.

[John Bruner]

No! The battery is nowhere near depleted when it overheats; and there is no air forced through the motor or the battery.
I've heard that the use of pouch cells will potentially alleviate these problems to some extent. Time will tell.

 

[sean donato]

Pouch cells arnt new, been around since lithium tech came out. Been using them for years in r/c. Cylindrical cells were launched to replace std size batteries already in production. I'm still amazed how an 18650 became the standard since it's a ******* size vs traditional cylindrical batteries.

 

[epo]

Pouch cells arnt new, been around since lithium tech came out. Been using them for years in r/c. Cylindrical cells were launched to replace std size batteries already in production. I'm still amazed how an 18650 became the standard since it's a ******* size vs traditional cylindrical batteries.

The new standard in power tools is 21700.

 

[sean donato]

The new standard in power tools is 21700.

and?

 

[John Bruner]

Pouch cells arnt new, been around since lithium tech came out. Been using them for years in r/c. Cylindrical cells were launched to replace std size batteries already in production. I'm still amazed how an 18650 became the standard since it's a ******* size vs traditional cylindrical batteries.

What I meant by my post was that pouch cells seem to be more effective in power tools; but they haven't been widely implemented yet; for reasons unknown to me.

 

[John Bruner]

Sure looks impressive in the video. That appears to be the 4.0ah battery. Battery tech just is not there yet except for a short burst like shown. If I take the 82 as nominal as opposed to peak voltage I get a run time of 5.79 minutes at 3.4kw. That is draw of current not force on the chain. Which is 10.4C 4C is about the most one wants if they care about cycles to failure.
Using 6 ah and 4.3kw from the article linked below I get 8.77C. Is 10C (Discharge recharge could be in another post) really at the produced and for sale to manufacturers now?

at best we are getting 200 watt hours per kg. 328 watt hours would be 3.6 pounds and 492 watt hours 5.4 pounds of cells maybe the housing for the battery as well.

If you had a back pack battery then the tool's duty cycle like a welder's duty rating would be the limiting factor.

pouch cells what is the likelihood it has battery cooling?


I found this text on a review at https://www.protoolreviews.com/greenworks-commercial-82v-h-o-g-chainsaw/
The saw is slated to launch at Greenworks Commercial retailers around fall 2024. Expect the price to run $1499 for a kit that includes a 6Ah pouch cell battery and a dual port charger.
Relying on a 6.0Ah pouch cell battery for power, the brushless motor can produce 4.3 kW. The stock bar is 20 inches, but this is the first battery-powered chainsaw rated to handle 24 or 28-inch bars.

I take this to probably mean 6ah battery for the 24 and 28 inch bars. . I could not get the owners manual to download on my connection.

I can't remember where I saw it today; but the H.O.G. comes with either a 20, 24, or 28 inch bar. And with the battery and charger; it was a little over 1200.00 with the 28" bar.
You can see pictures of it on the Greenworks Commercial website. There is a tab on the right side of the page that you click on that will bring up the catalog. FIVE kw motor!

 

[Franny K]

You can see pictures of it on the Greenworks Commercial website. There is a tab on the right side of the page that you click on that will bring up the catalog. FIVE kw motor!

Even with your instructions it took me perhaps 5 minutes to find it.



Stihl has a minority ownership in this company or it's parent Globe tool group

I just do not believe 5kw of power less than 12 pounds operating weight. bar chain battery and enough oil to last 6 minutes.

I believe 10c is the max for lithium batteries at this point in time. That means 1/10 of an hour or 6 minutes to deplete is the most draw possible. So, it would need 0.5 kwh battery to output 5kw. It takes me 0.53 or 0.54 kwh to recharge one Husqvarna bli200x and bli300 the weight of them is 7 pounds five ounces. They are dated 2020 and 2023. That is what goes into the charger not what the battery actually gets. Before I found the picture to attach here, I read it uses pouch cells, and they claim it handles better than a gasoline equivalent. Take your battery saw by the top handle and rotate it, then do a comparable battery one and see what you think. Holding by the rear handle and twisting is a closer match imo.

If you notice a couple of pages later, p112 it says .325 chain which is generally 62cc max in Oregon. Which page is right or is there a choice? There was another 55cc equivalent, different company but elsewhere I found a chain for it 91px which is good to 42cc.

 

[John Bruner]

Even with your instructions it took me perhaps 5 minutes to find it.

View attachment 1231453

Stihl has a minority ownership in this company or it's parent Globe tool group

I just do not believe 5kw of power less than 12 pounds operating weight. bar chain battery and enough oil to last 6 minutes.

I believe 10c is the max for lithium batteries at this point in time. That means 1/10 of an hour or 6 minutes to deplete is the most draw possible. So, it would need 0.5 kwh battery to output 5kw. It takes me 0.53 or 0.54 kwh to recharge one Husqvarna bli200x and bli300 the weight of them is 7 pounds five ounces. They are dated 2020 and 2023. That is what goes into the charger not what the battery actually gets. Before I found the picture to attach here, I read it uses pouch cells, and they claim it handles better than a gasoline equivalent. Take your battery saw by the top handle and rotate it, then do a comparable battery one and see what you think. Holding by the rear handle and twisting is a closer match imo.

Hahaha, a guy on YouTube told me where the catalog was. I couldn't find it until I wrote him back and he had to explain it to me a second time before I finally found it.
I am definitely getting one, and putting a 32-36 inch bar on it!

 

[John Bruner]

There is something about squeezing the trigger and hearing and smelling my chainsaw BUT there is no reason whatsoever that a battery saw can’t preform as well as a gas saw. Obviously you’ll have to refuel that battery saw more often than a gas saw but I find myself using my cheap little ryobi 18v saw almost exclusively around the yard. It’s so nice to toss it between my feet on the zero turn and be able to pull the trigger and not even get off the mower.

Battery saws are no where near where they need to be to run them all day in the woods but they’ll get there.

I’d also like to see the saw above buried in some white oak with a 24” bar.

I can already do that now with my EGO CSX5000 and a 24" bar. But this new Greenworks is more powerful yet! I'm getting a H.O.G. as soon as I can!