Submitted by Jeroenjx on November 27, 2014
Since Tesla stated they make 20 adjustments per week on the Model S, I figured newer cars must be a lot different than early production cars. So my question is:
Has the known vampire drain of a Model S dropped to less than 1.1 kWh per 24 hours in the newest production cars?
The vampire drain used to be around 4 kWh per day and after a software fix people reported something around 1 kWh every day (which is approximately 40 Watt). I'm interested in Tesla because of the potential of EV's to be truly zero emission vehicles. But if they even use power when not driven this seems counterproductive to emission reduction.
Some people said that 40 Watt isn't much for a few computers and chips to keep 3G connection and the radio to detect key fob signal etc. But I figured my mobile phone uses probably less than 1 Watt. I see some room for improvement here! So maybe those 20 modifications per week also includes some changes in computers running the Model S. Any thoughts, measurements or ideas about this?