don't listen to these guys... get the ION. best auger hands down IMHO. just keep your battery in the truck or house with you, keep it warm.
I have the original, first year one, with the same battery, and it's still going strong. best auger i've ever owned.
(and I've have strikemaster electric, lazor, eskimos 3 hp gas, strike master 4 stroke, jiffy 3hp gas)
not sure why you need 6 augers?
I bought the ion last year because I bought a new castle. I did not like the delay when you press the trigger nor did I like the handles being what felt like 2' apart. I returned the ion at the end of last year and picked up the K-drill with the fuel hammer drill. now I have a nice drill for year round use. the K-drill is much lighter (9-11#'s) and works way better than the ion for reopening holes, no hang ups on bottom of the ice, lifetime blades.
Never going back to gas or ion.