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Cordless chain saw #5436110 05/22/20 06:25 PM
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Donald Offline OP
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I have had a Ryobi small cordless chain saw. When I use the saw almost constantly for 10 or 15 minutes the battery gets very warm. It finally stops. I assume it's a protective mechanism in the battery to protect itself from overheating.
Even the charger will not charge it.

I let it cool and then charge.

Anyone else notice this?


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Re: Cordless chain saw [Re: Donald] #5436114 05/22/20 06:28 PM
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IMO: those are for light duty, such as limbing, if you need to use it for 10-15min its not the right saw.

also what size battery if its a 6ah its much less stress on it vs a 2 or 3ah


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Re: Cordless chain saw [Re: Donald] #5436116 05/22/20 06:30 PM
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JohnnyJohnson Offline
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A cordless Chainsaw isn't worth much more than small pruning that a Sawszall in fact the Sawszall would have a lot more utility.


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Re: Cordless chain saw [Re: Donald] #5436120 05/22/20 06:36 PM
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I have a DeWalt battery chainsaw. That thing rocks and will slice up a medium sized tree in no time.

Re: Cordless chain saw [Re: Donald] #5436162 05/22/20 07:39 PM
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After Irma and before Maria, I went down to the Caribbean to help with relief. I brought a cordless chainsaw. It worked great. It was a Ryobi cordless.

I cut a LOT of 6” size trees and branches. The battery gets hot. It’s smart to let it cool. But I never experienced severe heat with two large batteries on rotation, cutting for hours on end. Sometimes the charge would pause but they were not sufficiently hot to avoid touch. Best to not let Li-ion get above 65 C surface temp.

Re: Cordless chain saw [Re: Donald] #5436165 05/22/20 07:46 PM
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fsdork Offline
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Is the saw indicating an overheated condition when it cuts out, or is it possible the battery is discharged?

As for the battery not charging when warm, that may be by design. I know the battery packs in the drone I fly are quite warm after a flight, and the manual states the batteries must cool to a specified temperature before the charger will attempt to charge them.


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Re: Cordless chain saw [Re: Donald] #5436172 05/22/20 07:58 PM
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UG_Passat Offline
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A 2-stroke chainsaw is also cordless.


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Re: Cordless chain saw [Re: Donald] #5436174 05/22/20 08:00 PM
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ondarvr Offline
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I have a cordless saw, I only have two issues, but they aren't major ones.

When its very cold ( below freezing) you need to let the saw warm up a bit before putting a heavy load on it or it will shut down for a minute or so.

It will also shut down if it's hot out and you push it too hard.

For limbing and cutting smaller stuff it's great, it's my go to saw unless I'm cutting larger stuff.

As I get older I don't mind having to pace myself, or stop when the battery dies.

If you needed one saw to just cut firewood it wouldn't be the best choice, but for other stuff its great.

When cutting firewood I normally have 3 saws with me.

Re: Cordless chain saw [Re: Donald] #5436177 05/22/20 08:03 PM
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HangFire Offline
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Originally Posted by Donald
I have had a Ryobi small cordless chain saw. When I use the saw almost constantly for 10 or 15 minutes the battery gets very warm. It finally stops. I assume it's a protective mechanism in the battery to protect itself from overheating.
Even the charger will not charge it.

I let it cool and then charge.

Anyone else notice this?

That's they way it's supposed to work. Thermal cutouts for overheating in use, and also to prevent charging when overheated.


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Re: Cordless chain saw [Re: Donald] #5436186 05/22/20 08:13 PM
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Go get a Stihl. Everything else is junk.


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Re: Cordless chain saw [Re: Donald] #5436197 05/22/20 08:21 PM
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Astro14 Offline
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Best battery system, with lots of outdoor power tool options, is Makita’s 18v li-ion.

I’ve got several tools, including leaf blower and string trimmer that run on the 18v. They’re really great tools.

If you want a cordless saw, with good power and battery life, I would go Makita for the battery system.

Otherwise, Stihl or Husqvarna.

Last edited by Astro14; 05/22/20 08:35 PM.

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Re: Cordless chain saw [Re: Donald] #5436198 05/22/20 08:22 PM
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Donald Offline OP
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Normally I use my Husqvarna gas saw. But today I was seeing how well the cordless would handle cutting some trees that were 5" to 6" in diameter.


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Re: Cordless chain saw [Re: Donald] #5436212 05/22/20 08:37 PM
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Astro14 Offline
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One of the advantages of the 18v Makita is battery cooling. They can handle a heavy load. The charger has a built in cooling fan.

But back to your original question, yes, it shut down for overload/heat protection.


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Re: Cordless chain saw [Re: Donald] #5436220 05/22/20 08:41 PM
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My bos's son works for greenworks. He got us saws for xmas 2 years ago. They will run about 45 min on a charge non stop.


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Re: Cordless chain saw [Re: Donald] #5436237 05/22/20 08:49 PM
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Wife bought me a brushless Ryobi 12" for Christmas to clean up some limbs that were down from winter. First time I used it I made 6 cuts on a 6" section. Battery cut out and waited for a couple minutes to get it to run again. even the battery test button would not work. I have other batteries for my tools and they did not do that and the saw ran fine on them. I took it back to the store and told them that the saw ran fine on my other batteries. They wanted me to call Ryobi to request a replacement battery and that division was closed. Took the whole thing back and got my money back with no problems. I may try another one later but for now I guess I will keep using my Husq and Stihl saws. Love my Home Depot though.


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