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Have seen various battery pack based trailers, has anyone tried it with a Tesla?

For a DIY EV, the easy button for a range-extending trailer might be something like a 20kw Generac trailer so long as the EV is built to allow for charging while in motion. 20kw should allow for normal highway cruising speeds for a normal car.

But how to make it all EV? I wonder, if you bought a wrecked Tesla - one where Tesla themselves didn't yet know it was wrecked - could you take the battery, the brain, and a minimum set of components, and put it all on a trailer? Then draw from that trailer to extend the DIY EV's range. If the brain still thought the car was a car, the trailer could be plugged into the Tesla supercharger network, and allow the DIY EV that facility for road trips and the like.

The ultimate might be two Teslas stacked together like this, where you could charge both battery packs at neighboring Supercharger stalls.

What are the hurdles to something like this? Is the Tesla brain too picky and won't let you charge unless basically the whole car is there, making the minimum set too big and heavy?

Thanks everyone! :)
 

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Tesla's AI will figure things out pretty quick and shut you down.

You don't actually own such devices, you are just granted a restricted license for a period of time.
 

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Tesla's AI will figure things out pretty quick and shut you down.

You don't actually own such devices, you are just granted a restricted license for a period of time.
I'm sure that you own the devices, but are only granted use of software and access to Tesla-controlled facilities under whatever term they've defined. The end effect is the same - it's risky to plan on being able to use Superchargers with anything but a complete, operable, and supported-by-Tesla vehicle.
 
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