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It converts the DC from the battery to ac for the motor. Ac motors are far more efficient and don't have brushes that can wear out so there's less maintenance involved
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Kinda. The batteries are DC because they're batteries but the motors are 3-phase AC. >

Nikolai Tesla wouldn't be pleased by how the Tesla company is run. >

Yeah you wouldn't even have to plug his cars in... >

Lol underrated comment >

I wasn't even sure anyone would actually get what I was talking about. Tesla (according to documentaries I've seen) was seemingly really into the idea of sending energy wirelessly...like lightning. >

I mean you can't really store AC so doesn't matter and main advantage AC has over DC is that it can be sent a very long distance with very little power loss.