Two Tesla’s, one App

Now that we have two Teslas, it seemed useful to be able to use both with one App. The only thing that is necessary for this is that both Teslas use the same Tesla account. And just there we faced a little hurdle; our private Tesla Model 3 is on my private email account, while the new Tesla Model 3 is on my business email account. Now that can be solved fairly easy; per Tesla (account) you can add 5 extra drivers, and by adding my business email account to my private Tesla (account) as an extra driver, this was little obstacle dissolved. The only necessity that I had to do was to add my smartphone to both cars again (i.e. delete my old registration/pairing and make a pair my phone up again in both cars). With my wife’s smartphone it was only necessary to pair her smartphone with the business Tesla as an additional key.

When everything is properly set up, you can switch between the different Tesla’s within the app by swiping the picture of the Tesla to the left or right. This works well in itself, but there are also disadvantages, such as:

• when starting the app, the last active Tesla is woken up. If that is exactly the Tesla that you are not going to use then that is a pity, for example if you just want to let it sleep for a few hours to give your BMS the chance to do a good OCV measurement.
• if you use TeslaMate, both Teslas will suddenly appear in your database after you restart TeslaMate, which is always necessary after an update of TeslaMate. For some, that may be useful or perhaps desirable, but I didn’t want that because TeslaMate was not developed to support this according to its maker.
• you can open and operate the Tesla active in the Tesla app, but not the non-active / not selected Tesla.

I found the aforementioned disadvantages to be more negative for our usage against the benefits of two Teslas in one App, especially since my wife always drives the private Tesla. On top of that, I use two smartphones; one for private and one for business, so I have no problems with two accounts. Plus I had already set up TeslaMate in such a way that I ran two separate databases on a Raspberry Pi for both Tesla’s (blog post about this to follow). For emergencies, my wife can use her Tesla Keycard for my business Tesla, which also solves that problem for its sporadic use.