Does the new POWER+ 21" SELF-PROPELLED LAWN MOWER actually have increased power output?

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  • Updated 3 years ago
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Does the new 21" self propelled mower have the same power output as the LM2001 at 600W & 3300RPM?
Has there been any change to the mulching capabilities due to new blade design or increased RPM?
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Steve Valdes

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Posted 4 years ago

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David Cline

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Great questions, especially about the mulching performance of the included blade (or availability of premium upgrade)!
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Blue Angel, Champion

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The manual states 2800 RPM:



So it spins a bit slower, but it's a larger diameter (higher blade tip velocity for a given RPM) which will make up some of the reduced speed.
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Blue Angel, Champion

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Oh, and the power rating is not specified, but they are claiming "The Torque of Gas". That new slogan might indicate it handles thick grass better than before?
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Steve Valdes

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Interesting to see the RPM is 17% less...possibly less performance for more run time? I would like to know how the 21" blade & RPM will effect performance from the product engineers.
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Blue Angel, Champion

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I would be really surprised if the performance of the new mower was not better than the current model.  Like you say, maybe Ego can shed some light on their design decision?  Or maybe we'll just have to wait for the tests to start showing up to see what users think.
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Steve Valdes

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I agree...this new model should be better in a lot of respects. It has even taken on the shape more like a gas powered unit. Plus they eliminated the 2" protruding front handle at the deck to allow for better cutting coverage. Overall the unit is 1" shorter than the 20" unit...it is also 1.4" shorter in height; which is interesting.
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Jennifer VandeWater, Community Manager

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Hi Steve, Yes, the new 21” push mower got a 100W upgrade to 700W and the Self-Propelled version is sporting a 1000W motor part of that is needed because it’s an extra inch of blade but most importantly, the motors we specified now deliver the same torque as many gas mowers.  We hope this helps answer your question.

(Edited)
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Blue Angel, Champion

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Just to clarify, do both 21 inch mowers have the same motor driving the blade ?

Worded another way, does the self propelled version have a 700 W blade motor and a 300 W drive wheel motor?
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Rob

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Can we get an answer to this question?  If not, everyone isn't getting the same mower. 
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David Cline

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The manual says that you can let off the propulsion to increase power to the blade in an overload situation, so power to the forward propulsion and blade motors is not completely independent. Also, you can run either without the other being on.

I suspect the answer to this question is more complicated than it may at first seem.
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Rob

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I don't know about that.  2 weeks ago, a community manager stated that the mower had two separate motors.  One for the blade and another for the wheels. 
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Glen

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It seems logical to me that there would be some loss of cutting power when the drive system is engaged due to the drive motor using some current/voltage.
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Rob

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That would mean that the community manager has no idea what she's talking about in that case.
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Blue Angel, Champion

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I wouldn't say that... I might guess she's been busy and hasn't had a chance to follow up yet. Her wording was a little confusing perhaps, but I'm fairly certain the answer we'll get is that the propelled mower features a 700w blade motor and a 300w propulsion motor.

DC pointed out that the manual suggests backing off on the self drive in an overload situation. To me, this could mean one of, or both, the following things:

1. Backing off the self drive frees up battery power that could otherwise be used to power the blade motor (as mentioned above).

2. Backing off the self drive will slow the mower's speed, or "feed rate" ", into the heavy grass, giving it a bit more time to power through a given amount of lawn. Basically doing what an operator would do anyway with a push mower; go a little slower if it starts bogging.

Either way, the new motor is rated at 700w, a substantial 17% increase in power.
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Rob

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I would hope that the battery would be able to fully power the drive engine with everything it can handle at all times.  But I guess that's plausible. 

I was about to order the bare bones one tonight since I have two 4.0amp batteries already but I wonder if it would be better to wait for some official reviews first.

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SCDC, Champion

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I have one shipping. I will give it a pretty thorough review. My yard has an incline from hell, thus it will be a great test for the self propel option. I have a good array or batteries to test.
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David Cline

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Hey Rob, I must have misread something because I can't find anywhere in the manual where turning off self-propel is suggested for overload, only slowing your pace.

What I do find is this, which seems pretty clear about the motors being independent:



Sorry for any unnecessary concern or confusion my earlier comment may have caused.
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Blue Angel, Champion

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Thanks for following that up, David!
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Rob

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That's cool.  Just trying to clear up some confusion. 


I don't want the self-propelled option...especially because I still have the first mower and haven't had any problems with it. (knock on wood).  As you all know, I harped on at least having a 4" cutting height.  The extra inch on the blade is a bonus. 

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Rob

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SCDC,


When are you expecting delivery?

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SCDC, Champion

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I haven't gotten my shipping confirmation yet but I probably within a few weeks. Ups is terrible where I live. Something shipped two day takes a week sometimes. :/
(Edited)
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Rob

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Just ordered the $429 version.  Self propelled no battery or charger...as I already have them.
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Blue Angel, Champion

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Wow guys, super jealous here!  Can't wait for some feedback!
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David Cline

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I've barely had a chance to unbox these, but I hope to have my reviews with some pics and video posted by next week.

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SCDC, Champion

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I'm most envious of the blower. Nice pic to make a person lose sleep
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Blue Angel, Champion

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Great pic David!!! Now, you know you're on the hook for some review material, right?

I'm really looking forward to feedback on the self propel feature.

Do you still have your 20" to compare to? See if you can get a shot of both mower's lights on your garage door! :-)
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Rob

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Ordered less than 24 hours ago. Just got an email from Home Depot saying my order was on the way.
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Jennifer VandeWater, Community Manager

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Hi everyone, we're so sorry for the delay in our response.  Blue, we didn't mean to ignore you.  The 21" Self-propelled mower has two motors.  One for the blade and one for the drive system.  The motor for the blade is 1,000W.  We hope that this helps alleviate any confusion or concern about the kind of power you'll experience with the newest EGO Power+ product.
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Rob

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So that means that the blade motor itself is more powerful on the self propelled models?
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Jennifer VandeWater, Community Manager

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That's correct.  The 21" push mower has a 700W motor.
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Glen

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Wait, you just wrote it has 1000W? Do you mean both blade and drive motors together have 1000W? So the drive motor is 300W???
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Glen

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Oh, wait...never mind.
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SCDC, Champion

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Glen, you are causing me to be completely confused now  :)
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Glen

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Sorry :-)
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Chris Deiter

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Why is the blade motor more powerful on the SP model compared to the Push Model?  Does that mean the SP model does a better job of mowing, especially if you pushed the SP model like it was the Push Model?
(Edited)
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SCDC, Champion

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Chris,

I know of at least a half dozen people on here, including myself that now have the 21" SP mower and will be posting our opinions on this subject as our grass starts to green.  I know that pushing the SP mower to my storage building, it was rather difficult to push "dead weight, not running".  Maybe it has some sort of clutch or braking that is released when the blade is engaged that makes it easy to push manually if desired.  Look for some answers soon.
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Chris Deiter

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Much appreciated SCDC Champion.  Looking forward to some answers, before I make a decision on which model to buy.
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Jennifer VandeWater, Community Manager

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Hi Chris, power ratings of tools do NOT change based on the battery you are using, only the tools ability to absorb high current draw situations. For example: a mower cutting with a 2.0Ah battery will not be able to cut through the demanding tall wet grass that a 4.0 or 5.0 battery could. We hope this helps.
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Chris Deiter

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Thanks for the response Jennifer, but that's not completely what I was trying to find out.  From what I have leaned the following applies to the new 21" mowers:
  • SP Model = 1000W cutting motor w/ 7.5Ah battery.
  • Push Model = 700W cutting motor w/ 5.0Ah battery.   
That being said, does this mean that SP model does a better job of cutting?  

Even if we put the same size battery (either 5.0 or 7.5) in both models one would have to assume the SP Model would cut better seeing as it has a more powerful cutting motor.  Why didn't Ego put a 1000W cutting motor into the Push Model as well?  Insight on this would be greatly appreciated.  

Thanks!
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Jennifer VandeWater, Community Manager

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Hi Chris, sorry for the confusion. By virtue of its more powerful motor, the self-propelled model is going to perform better in extremely demanding conditions, such as cutting wet, thick grass. This increase in power is another option we are making available to our customers.

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Ken Ward

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Hurry up and send them to Canada.....I waiting for it.  My 86 year old dad is in a pickle with his yard and in need of  a 21" self propelled.

K.Ward
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Steve Valdes

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I agree...we need two of the SP mowers asap for our Little Green Mowing Company. What is the eta for availability in Vancouver BC?
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Jennifer VandeWater, Community Manager

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Hi Steve, we just replied to your other post about availability.  Check with your local Home Depot Canada.  They'll know more specifically when the mowers are due to arrive than us.
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Blue Angel, Champion

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For what it's worth, my local store in Ottawa just got a delivery of 5Ah push mower kits in.
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Glen

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I still think that using the drive system will cause at least a marginal reduction in power to the blade motor. I say this because they are both powered from a single battery.
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Glen

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I guess that's why the self-propelled mowers have more powerful blade motors though.
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Rob

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Glad I went with the self propelled option even though I don't plan on using it.
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Rob

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Received my self-propelled 21" mower today. 

Anyone know how long the mower should run on the 4.0ah batteries?

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Blue Angel, Champion

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This is what the manual says for the 21" mowers:



Using the push mower and 5Ah battery as a starting point, the claim is 45 minutes in light duty mowing.

5/4 = 1.25, so the 5Ah battery has 25% more energy than the 4Ah battery.

45 min / 1.25 = 36 minutes

That's just a WAG... let us know how it works for you once you try it out!
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Rob

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Thank you for that info.  Looks like the neighborhood of 20 mins per battery.  I wonder if that's using the self-propelled option the whole time. 

Either way, doesn't look good.  Its another $170 for the unit with the 7.5ah battery.  I'm drawing the line at the $450 I've spent for this mower especially since I still have the 1st gen version.

What possessed me?.........lol.

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Rob Falcipieri

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This reply was created from a merged topic originally titled Nagging Question.

Ever since I decided to purchase my Ego
LM2100 I've been watching YouTube video's to learn as much as I could
about what I was about to spend my hard earned money on. One of the
video's show's a guy in a large garage explaining the advantages of
the 21” SP version versus the 21” push version. In his
explanation he states that the SP version has a 1000 watt motor
versus a 750 watt motor in the push mower. I've tried to verify this
in the owners manual but couldn't find anything that either confirmed
or reputed the claim. It is my understanding that the SP version
actually has two motors, one to propel the mower and one to turn the
blade that cuts the grass. If that's the case I can't understand why
a larger motor would be needed presumably to cut the grass as he
doesn't even mention that there are two separate motors. Can anyone
tell me if (a) the SP version does in fact have a larger motor and
(b) why a larger motor would be needed if there are in fact two
motors? I can understand the benefits of a larger motor but why would
a larger grass cutting motor would be needed when SP and push version
have identical blade sizes. This is just one of those nagging things
that I came across and might be confusing or even misleading to some
people.

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