On Mon, 13 Jun 2011 14:30:54 -0700 (PDT), Tim
wrote:

I also like that suggestion. Frog could go with a 500w sine-wave
inverter and hook it up to a 12v battery. My dad did this and did some
pretty good work with a 3/4 hp Chraftsman grinder and little battery
discharge.

Yes, a small inverter works very well for occasional use of power
tools. I believe he wants it for an off grid cabin in Wyoming so he
could run the inverter from a car/truck battery as long as usage is
light or leaves the engine running while he works.