Elon Reeve Musk - Tesla, Inc.
Oh, we're definitely going to be improving our Supercharger technology. The thing about a 350 kilowatt charger is it doesn't actually make a ton of sense, unless you've got a monster battery pack or have like a crazy high C-rate, in which case your energy density is going to be poor. So it's kind of cockamamie. Yeah, we think maybe 200 kilowatt, on a per car – also I don't know if they made (47:55) 350 kilowatts for a single car, that's really pretty – you're going to frag the battery pack if you do that.
You cannot charge a high-energy battery pack at that rate, unless it's a very high kilowatt-hour battery pack. So something along the – yeah, I think – I don't know, JB, a couple hundred, 200 kilowatt, 250 kilowatt maybe.
Jeffrey B. Straubel - Tesla, Inc.
Yeah, I mean, that's definitely sort of the power level that we've discussed and explored and some of it also comes down to an optimization around utility versus cost and trade-offs in the car itself. You kind of hinted that Elon, but there is a trade-off fundamentally between charged speed and essentially range or cost of battery.
Elon Reeve Musk - Tesla, Inc.
Yeah.
Jeffrey B. Straubel - Tesla, Inc.
And we look at that pretty carefully. We understand the trade-off and we could design cells and a pack that could charge at faster than 300, 400 kilowatts. But it's not a very useful trade-off to the customer.
Elon Reeve Musk - Tesla, Inc.
Yeah, (49:03) energy and power even really?
Jeffrey B. Straubel - Tesla, Inc.
Yeah.
Elon Reeve Musk - Tesla, Inc.
Energy – (49:08) range and then power is kind of like your peak acceleration basically, the rate at which you consumer energy. So really, it's more important to have – it's more important to have long range than it is to have a superfast charge time.
And you can sort of think about this in the devices that you use. Would you rather have a cell phone that lasted two hours, but it could charge in five minutes or 10 minutes let's say, but it only lasted two hours. Or you like a cell phone that lasts two days and maybe takes an hour to charge.