Portable Power Generator

http://www.amazon.com/b?ie=UTF8&node=583328
Might also check here, mine's a little small but it runs my old sawzall ok, It won't run Snodleys new sawzall, must be more amps. It is nice cause I can plug in a 50 ft. cord and reach most cutting jobs. Like I told Filthy, get a bigger inverter for just a few dollars more that way your not working it to death. If your not running up against the amp limit all the time it will run cooler and last a lot longer. I think he used some heavy stereo power cable and added clamps to hook to his battery, that way it's easy on easy off. I can run my saw for about an hour before I have to start it to charge up.http://www.harborfreight.com/automot...inverters.html
That 5000 looks like a real bad-ass inverter, mine's closer to a 1500 that's why it's a little light. All depends on what all you want to run at a time.