Cordless drill for ice auger

[Springbuck1]

I got myself the pistol bit 8" and a Ryobi P251 (probably the cheapest that is to spec)for christmas this year. Works excellent, no issue drilling 30+ holes in a day. Im sure there are nicer ones like dewalt or Milwaukee, I went Ryobi because I had the batteries already.

  That's good.  I tried my older Ryobi + 18V , which I think is a P852 (?).  It has new NiCad batteries (claiming 3.5 Amp Hours each), and a 1/2" chuck, but it was NOT up to the task.  I was wishing I had a 6" auger, and it might do.