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Originally Posted by Brian Swartz
Agreed. Edward's point is well-taken, but my (limited) understanding is that we aren't likely to get down to what most people would consider a reasonable recharge time anytime soon. I don't think it matters how good that option is if we can't get there - but I'm not certain that's the case.
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Right now at least ...
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How fast does a supercharger charge a Tesla?
They take about 20 minutes to charge to 50%, 40 minutes to charge to 80%, and 75 minutes to 100% on the original 85 kWh Model S. The charging stations provide high-power direct-current (DC) charging power directly to the battery, bypassing the internal charging power supply.
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Googling says there are 4 different types of electric car batteries. No idea how "compatible" the chargers are between those 4.
I do see the concern about investing in a nationwide network of chargers that are not compatible (good old early era with DOS and Windows 3.1) or have to "upgrade" every few years (e.g. early days of PCs & Laptops where it seems software forced a hardware upgrade every 2 years).
All in all, would prefer a 20 min charge time for 80% vs swappable batteries (Tesla batteries weigh 540kg or about 1,200lbs).
On one hand, I can see gas stations jumping on this because that is 20 min people have to spend into their stores (where they make the real money). On the other hand, I can see WalMart and other big box stores putting in charging stations to attract the same captive audience.