Looks impressive, I think the battery powered augers are becoming an attractive option.
My question is when you say 40 holes in 24″ of ice, is that 40 consecutive holes? I normally drill holes in bursts throughout the day, so if I drilled 5 holes to start, and then every half hour or hour later I drilled another five, would you still have enough juice to get to 40 holes? Even if I did keep the battery warm?
Yes, as long as you keep the battery warm (enough) drilling consecutively or a few at a time does not affect battery life, at least not that I have ever noticed.
Also, I have never drilled more than about 25 holes in any fishing day with it and I always charge it between days on the ice. I have never run out of juice with it when using it this way, except the one time I left the auger on the ice resting battery side down for about an hour. It ran out of juice after about 10 holes, but once I warmed it up it returned to normal.
I find my SLA batteries in my flasher are affected by cold as well. I can run my LX-9 for about 10 hours inside a heated shack, but more like 6 when I don’t use a shelter and it is sitting on the ice.