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Try looking over these specs. Then tell me there is a better auger out there. http://www.landmsupply.com/department/sporting-goods/ice-fishing/augers/eskimo-shark-71cc-10-power-ice-auger
For what it's worth...I always ran a jiffy model 30 2 stroke, and it NEVER failed me on the ice. I loved that auger and said I would never part with it.... Well, I did. I bought a Jiffy propane 10"and as much as I loved the model 30's, I do not regret trading up for the pro4. It is reliable, and starts up 1st or 2nd pull every time. no BS. I would think about a propane fueled auger before a battery one. Batteries do not work efficiently in the cold and inevitably die. I don't know where the ions are selling for $600, but in my area they run same price as the pro4 at a little over $500My only other suggestion is to try them out before you buy. most folks know enough ice fisherman with different augers so they could borrow or at least cut a few holes.a few years ago, I walked over to an unknown guy ice fishing near by, and after a short chat with him, I was admiring his new jiffy pro4. He was gracious enough to let me try it, so I cut a few holes for him with it, and found the auger I wanted.