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I bet that today's announcement is Tesla's first step towards full-blown "battery as a service" offering. You will own the car, but not the battery. Instead, you will lease it from Tesla with an option to swap it at will and as frequently as you'd like. For example, on any charging station, in less than 2 minutes.

That'd be very Musk-like thing to do.

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I don't really understand all this talk about "Your" battery, "My" battery etc. since it doesn't seem to be the sane way to do things.

Sell me the car without battery, make me sign up for a battery service at $X per month which guarantees access to batteries at the swap-stations (The first 'swap' being done when I get the car) and done.

Let me treat batteries like I treat AWS servers, totally replaceable cattle. No ownership issues, no "swap YOUR good battery for a dud one" issues.

The "Your" battery talk happens because Tesla charges extra for cars with larger batteries. I agree, though, that this will likely not be the case one or two generations down the line.

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