The temp probe on the Ice is pretty poor for batt temp anyway - it lags behind actual temp pretty badly. I've always had to set mine 15-20F lower than the actual temp I wanted it to use as a cutoff. I used raytech gun for reference temps and Ice probe was consistently low, too low.

This was made even mor eobvious when I got temp probe for my Hyperion 0610iNet charger - the response is much better and floows temps indicated buy my raytech gun within 3-5F.