That's one reason I haven't been in any hurry to switch to the new battery technology. I don't want to have to babysit my batteries and worry if they are warm enough all winter long. That and I can get two Dewalt 18V XRP NiCad’s for the price of one of their newest batteries.
I really haven't been that unhappy with the older batteries performance so, I have no pressing need to switch to the new ones at this time anyway.
