I'm not saying your concern doesn't have merit, but what's the cost. We want the mower to be affordable and EGO to make a good enough profit to support their products and continue to produce new and well designed products.
My advice to EGO is KISS. Keep It Simple and Solid. ;-)
You do realist that by going battery, you are paying a lot for convenience, and the these lightweight tools aren't built out of industrial materials, but optimized to be light weight. I keep my expectations in line with the convenience and value. More than likely the mower will last 5 to 10 years, but if they offer a nice upgrade in five years at a good price, it still ends up a net savings over my gas honda. I've been emptying my stored gas into my cars, it's nice not having gas lawn tools!
My biggest concern with all of my different brand battery tools are the batteries. My hand tools won't wear out, but dang the batteries are expensive, and they wear out.
And I stand corrected! But looking at the duty cycle of a mower, I don't see a problem with it having brushes. Think about this, how many hours in the year is the motor running on the mower? I'm guessing most people mow once a week for about 6 months out of the year, or about 24 hours a year. That is not much run time on a motor. Most motors with brushes run 24/7 for many years.
Thanks for correcting me on that one!
The Chainsaw is brushless.
You got me a bit more curious about the claims. I believe that what you state is true. Found this nice article, short and sweet about the benefits. http://www.popularmechanics.com/home/reviews/news/whats-so-great-about-brushless-motor-power-tools
I've never really cared much about brushless verses one with brushes, but with dropping the cord and going batteries, it makes sense to look at this.
I am very happy with this Mower, very...basically, because I will never brake my arm ever again pulling the ridiculous string to start the small farting machines...plus no spill on my beautiful (now) green grass.
On the subject...about BLDC versus Brushed Motors...I love Brushed Motors...even though I own an Electric Bike with a Hub BLDC Motor and go 70 MPH...Brush Motors have much more torque than BLDC...plus all the controllers required to run BLDC where all MOSFET's (Transistor's Ultrafast Switchers) go bad and burn very quick, unless it is a $600.00 or $800.00 one...with self cooling and all.
Regards to all