21-inch self-propelled 60 minute run time VS. the 20-inch Walk Behind Mower Kit 80 minute run time

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This question is in regards to two comparable models; the 21-inch self-propelled 56-Volt (60 minute run time) vs. the 20-inch 56-Volt Walk Behind Mower Kit (80 minute run time).


  1. Why is the 20-inch $50 more expensive than the 21-inch?

  2. Where is the difference in run time coming from? Is the 21-inch self-propelled run time based on using the self-propelled for the duration of the 60 minutes?

  3. What does “walk behind mower kit” really mean?

  4. Any other considerations to keep in mind?

In the end, if the 21 inch gives us extended run time by moderating the self-propelled feature, we will go pick it up at HD tonight!


Tara and Raul - Happy first time home owners and pro-environment!


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Raul Inoa

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Posted 2 years ago

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Blue Angel, Champion

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Official Response

1. The elevated price of the 20" 7.5Ah kit is a mystery... it literally makes no sense. If anything it should be $50 cheaper since it's the older 20" mower with the same battery and no self propel.

2. It would make sense that the SP mower run time includes using the SP feature, but Ego doesn't specify.

3. Just means no SP option.

4. The 21" model has more power than the 20". If you have exceptionally thick grass and/or you cut your grass at a very low height, the extra power of the 21" will interest you.

Ego's mowers have ball bearings in the wheels and are very easy to push. If your yard has large level areas you likely won't need the SP feature there and you could choose to use it on hills only if battery time is an issue.

You have 90 days to return it if you're not happy. I would recommend checking the blade when you get it; the blades don't come very sharp and a sharp blade improves the cutting performance quite a bit. Sharpen if necessary.

Enjoy! :-)