Hello - M3 with an LFP. I charge nightly to 100%. Charging is scheduled at 1am and car is at 100% by 5am. When I turn on climate (up to 72 degrees F) along with steering wheel and driver seat warmer at 8am for about 15-20 mins, I notice that the SOC drops by 1 or 2 percent (max range drops by about 2-3 miles) even though the car is plugged in (granted it days ‘charging complete’). I thought the car would use street power when AC or Heater is on while plugged in? Thanks.