Anyone else have the battery cooling/heating system make a "lawnmower" or grinding sound, like it's working extra hard? I hear it periodically after my 40 mile highway commute in cold weather, but there's no real pattern. It's usually when the weather is below 40F and I've been running some sort of heater combo and going 70MPH for most of the trip, or if I've been out... ahem... "playing" and showing off the acceleration. Today it was immediately following an almost full charge on 220. It's obvious it's when the battery is taxed, but there's not real definitive pattern. I tried to record some audio with my phone but it was done before I could get to it. I could actually hear it in the cockpit over the radio at moderate volume as I was pulling into the garage. Also, I joined the Curious Cop Warning Ticket Club last week. Yay for me.