I bought one of these adpters for Saginaw Bay. Was cheaper than running out for a gas auger in feb/march. I use 2 14.4 dewalt batteries with a 6 inch strikeMaster. the more I keep the batteries at a warmer temp, the better thay work,the cold puts a bigger hurt on`em than Anything. I seem to manage 8 to 10 holes per battery on 10 to 12 inchs of good ice.
While at Sag. managed 4 holes each battery on 17 to 20 inchs. Cold really killed me here.
Went to Houghton had 20 or more inchs,would get 3 holes each battery,had truck and charger at the hole so fresh as can get,
I could see these being handy about anywhere,unless your out for a bit,with no way to charge and keep`em warm before use