My December 2016 MS 90D sat quietly in my garage for two days. Settings: Power Saving: Off Always Connected: On (on home WiFi) Smart Preconditioning: Off Range Mode: Off Over a period of 47 hours, it's estimated range went from 198.4 to 189.2 miles. The car appears to assume that I will be burning 309 Wh/mile. So, ((198.4-189.2 miles) * 309 Watt-hours/mile) / 47 hours ~= 60 Watts Sort of like having a 60 Watt light bulb burning in your garage 24/7 or an electric car that runs thru over 4 miles of energy per day while it sits in your garage contemplating it's existence. For me, this is about equal to the total vampire drain of everything else in my house. At my lowest tier electric rate of $0.183/KWh, this comes to about $8/month... or a couple cappuccinos.