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If the battery meter can't cope with typical American temperature ranges yet it being sold in these areas, yeah, it's a flaw. If it says 100 miles left and after 10 miles now tells you 50, yeah, it's a flaw.

Can the flaw be corrected? Maybe, maybe not. But it's still a flaw.

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I wouldn't call this a flaw, it happens to batteries when they are exposed to temperatures like this. The gauge for the battery is accurately trying to show you your usage in real-time.

I bet he probably could have gauged it by jumping in the car turning it on and then starting the heater as well. His mileage would have declined before he even started driving.

Think of it this way, batteries always improve in 2nd / 3rd gen devices (look at apple) and I am sure that is what Tesla will start to address.

The flaw (and it is a very major flaw) is in the reporting system, which is unable to give drivers planning their drives reliable information with which to plan their drives. That is flawed almost by definition. The reasons why are utterly irrelevant. A flawed fuel reading is a fundemental flaw in a product that is essentially useless without fuel.

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