I have lived in south and north for a while but most of my life in midwest. He the 90?s is not rare and though not this year we have seen over 100 a few times. I travel to SC in summer sometimes and it is "toasty" there is summer. Talk about dead batteries, one year around xmas in the 90?s I was crossing South Dakota in during severe cold and near blizzard conditions (25 to 30 below with 50 mph winds) and spent the two day in rapid city because I did not want fight the weather anymore and it was getting colder still even though my burb with dual heaters handled it fine, I had very young children and did not want to chance it if we had trouble. ANYHOW, the reason I started this story is while we killed time in Rapid at a big indoor mall (popular in cold climates) every place that sold car battieries that day had old batteries stacked in big piles and I overheard a guy in Sears tell someone looking for a battery that there was no batteries to be found anywhere that day in or around Rapid City for 50 miles or so. Never seen such a run on batteries. Liek me tell you minus 30 with 50MPH plus winds is COLD! I wonder how many of those batteries were really bad and not just fully charged.