72 overcharging

Now it's back down in the 30's temperature-wise and I'm seeing high 14's but not 15V at cold startup. Once it warms up it settles down to no more than 14.62V. This all seems really good but I'm not sure what I did to "fix" it......The only thing that I did was to clean the cables and terminals really good when I put my good battery back in. All this on the same day the adjustable VR arrived! I think I'll stick with the stock VR unless voltage starts climbing again when it's really cold.