Submitted by nickjhowe on September 24, 2012
Sorry if this has been asked elsewhere.
Does the main battery pack keep the 12V battery charged for as long as there is power in the main pack?
I'm planning to install at least one dashboard camera into my Model S. In "normal" cars there is always the risk that the 12V battery will be drained if the camera runs continuously and draws current for an extended period (days) when the engine isn't running. It is possible to use a device like this to avoid the problem, but on the Model S does the problem essentially go away?