2009 Solaris Self-Propelled Cordless Electric Lawn Mower Review – 4

Yesterday in Part 3 we reviewed the batteries for the 2009 model of the Solaris electric self- propelled lawn mower.

Today I wanted to review the Terra Phase electric brushless motor which comes with this mower regardless of whether it is the Epic, Utopia or Solaris brands.

The brushless motor is said by it’s manufacturer to be the quietest motor for any powered lawn mower. I can believe it. This motor in the 2008 Epic mower we had last year was certainly much more quiet than any of my neighbours’ gas or corded electric lawn mowers they have.

I really like the environment factors which this motor provides, such as:

  • no gas or oil consumed during operation
  • no waste from oil changes, oil filter changes, etc.
  • no spilling of any gas or oil
  • no polluting emissions

Another factor I really like is that the motor is maintenance free saving me both money as well as time and effort to maintain the motor; remember, my wife’s husband can be lazy at times. icon wink 2009 Solaris Self Propelled Cordless Electric Lawn Mower Review   4

solaris brushless moter lawn mower 2009 Solaris Self Propelled Cordless Electric Lawn Mower Review   4

Additionally, I like that I don’t have to buy one or more electric cords to use the mower since it is battery operated. Operating the mower is easier because I don’t have to worry about where the electric cord might be and ensuring I don’t mow over it.

Of course I like how there is the optional solar charging station which I used all of last year with the 2008 model so there was zero operating costs for me.  Environmentally, I was not causing indirect consumption of a non-renewable resources as well as generating polluting emissions into the air from charging the mower’s batteries by plugging them into an electric outlet in my home which receives electricity from either the near by nuclear or possibly a coal burning power plant.

As well, it is sufficiently powerful to allow the lawn mowers to have the self-propelled feature which as far as I can tell is not offered on any other battery powered lawn mower because it uses some of the battery charge.

Look at the chart below which I took from the Terra Phase web site, with thanks to Linamar Consumer Products:

terra phase efficiency chart 2009 Solaris Self Propelled Cordless Electric Lawn Mower Review   4

What this speaks to is the efficiency (vertical bar on the right) of the Terra Phase motor per inch pounds of torque (horizontal bar at the bottom of the above graph).  According to the same web site “The Terra Phase brushless Motor will outperform competing 48V and 60V cordless mowers.”

This also means, per the web site, that there should be longer run times and what allows the Solaris, Epic and Utopia electric lawn mowers to have the self-propelled feature.

Unfortunately, just to keep it real, the chart and above referenced page does not indicate which ‘independent’ testing facility was used nor the competitors.

This page on the Terra Phase site provides more information comparing its brushless motor to standard brush type motors which you may find interesting .

What I also like is that, per the referenced page on the Terra Phase site, their brushless motor has a lifespan of approximately 15,000 hours with no degradation while typical brush type lawn mower engines have a typical lifespan of only approximately 2,000.

Tomorrow, the test drive.

To continue to the next article in this series, simply select this link to Part 5.

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