It wasn't the coldest night, just cold enough, for us to have a complete battery failure this morning. Woke up around 6am to the furnace making a "funky" noise. That noise was the death of our batteries. I teasted them and don't get a single volt... I'll wait till I get a chance to give them a good charge before making the official call of DOA.
On another note, we reached dew point last night, which laid a blanket of frost over everything. Almost gave it an apperance of a white Christmas! Thankfully no pipes froze, and it really didn't get that cold in the house. Only 44° which is warm compaired to the 24° outside.