We are about to leave town for 10 days and I'm wondering whether I should leave the Bolt connected to the charger when we leave. The Bolt and the charger are in an unheated garage, which so far this winter has stayed above 32 degrees. But it's Michigan, and the weather can be unpredictable. Is it safe to leave the car charging for that period of time, basically unattended? Is it safe to NOT charge the car for that period of time? Thanks for any advice that you have.