brulaz wrote:
Good points. Apparently battery temp is also used in the chevy's control circuits to set alternator voltage.
Previous Link wrote:
This is accomplished by using knowledge of the battery state-of-charge and temperature to set the charging voltage to an optimum battery voltage level for recharging without detriment to battery life.
Compared to my newer RAM, this 2011 Cruze seems to have a much more sophisticated charging algorithm. The RAM just sits at 14.3-14.5V all the time AFAIK. But I've never had it down to really low temps. It's currently vacationing in Florida.
I suspect your RAM is smarter than that. My much older RAM will happily sit a little over 15V when it's cold here.