Hybrid Car – More Fun with Less Gas

Re: Convert Your Gas Mower to Run on Solar Power

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Posted by Josepi on July 6, 2010, 12:11 am
What is the HP rating on the motor for these batt powered mowers?

I use a 6.5HP gas enegine for mine and it boggs down on mulching if the
grass is too long and wet, at all. Mind you we have very small horses here.

I am using a 15 watt solar panel to recharge my old Black @ Decker 24
volts DC electric lawn mower. http://www.billcotton.com/my_garden.htm
The Black @ Decker cordless lawn uses two 12 volt Gel cells in series
to developed 24 volts.
http://www.blackanddecker.com/ProductGuide/Product-Details.aspx?ProductID 345
after four years of uses, the batteries lost capacity and the run time
was less. I tried replacing the batteries with lawnmower started
batteries but these batteries aren't made for constant load. After
using the warranty to replace the batteries a few times, I gave up and
visit the B&D outlet off season and bought a new 24 volts cordless
mower for around 250 dollars. With the new mower I get about 3/4 of my
lawn cut, (3/4 acre) I would the old mower to finish with diminishing
time. Or put the new mower on charge while I edge and sweep the walks.
The shed where I store the old mower doesn't have electric so I would
have to wheel the old mower to an outlet for charging.
I bought two 12 volt sealed lead acid batteries for the old mower that
I had rewired to bypass the safety switch. I use a 15 watt solar panel
to charge both batteries at the same time. The last two cuts, the
mower charge from the solar panel cut the entire yard and was still
running at full speed. We are having a drought in eastern Pennsylvania
and the panel has charge for almost two weeks between cuts. Mid spring
the cut are twice a week. Either way it is a winner for me.

Posted by Ray Vickson on July 6, 2010, 3:51 pm
On Jul 5, 4:44am, use...@mantra.com and/or www.mantra.com/jai (Dr.
Jai Maharaj) wrote:

About 10 years ago the lawn next to my  hotel in Interlaken,
Switzerland, was being mowed by a solar powered robotic lawnmower. No
handles, no human guidance, etc. What is so special about the gadget
in your provided link?

R.G. Vickson

Posted by Morris Dovey on July 6, 2010, 4:47 pm
 On 7/6/2010 10:51 AM, Ray Vickson wrote:

That sounds pretty good. Is it sold in North America? If you have a
link, I'd like to learn more.

[followup set to alt.solar.photovoltaic]

Morris Dovey

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