Went to fly today and got an "over cooled battery" message as I was booting up. Temp said 64 degrees. I live in Florida and had the X-Star inside all day long so surprised that I got this message especially when it is 58 degrees out. Autel Support said you will get that message if the battery is below 68f.. They said you need to warm the battery up by hovering or idling. Any of you guys farther North than Florida have to deal with this??