Is anyone aware of a test that has been done to find out how long it takes for lifepo4 batteries to cool down? I have noticed quite a number of posts that mention concerns about damaging lifepo4 batteries because the outside temperatures will be below freezing. I use lifepo4 batteries in an rv application and I have noticed that many RVers panic when the temperatures go below freezing because they don’t want their water to freeze. The reality is that it takes a very long time to freeze water in a hose at 32 degrees. Some lifepo4 batteries that I have seen torn apart appear to have multiple layers of plastic and air space som batteries probably have nearly an r value of 2 between the inside of the cell and the outside world. Has anyone ever studied the length of time it takes to cool a lifepo4 battery and conversely how long it takes to warm it up. Also how much amp draw is required to hold even battery temperatures as it gets colder? (Amp draw produces heat)