[coloradan]

Even if it’s true the batteries can be charged that quickly, there is still the considerable problem of power. It takes hundreds of millions or maybe a billion joules to drive a hundred miles, so for that energy to enter the battery in a few minutes means you need megawatts of charging power, which not many places have, and they won’t be cheap.

[The Antiyuppie]

“Even if it’s true the batteries can be charged that quickly, there is still the considerable problem of power. It takes hundreds of millions or maybe a billion joules to drive a hundred miles, so for that energy to enter the battery in a few minutes means you need megawatts of charging power, which not many places have, and they won’t be cheap.”

Another issue is that generally, the greater the charging speed of a battery/capacitor technology, the greater the self-discharge rate. When one of these “game changer” technologies comes up, not talking about that is an automatic alarm bell.

[gibsonguy]

Let’s say it’s true, that leaves a dozen major problems with these things one of which you alluded to

[NewHampshireDuo]

.... so for that energy to enter the battery in a few minutes means you need megawatts of charging power, which not many places have,

Maybe it just sucks the amps out of the charger like a big sump pump /sarc

[hopespringseternal]

Yep,every gas station is effectively a power plant. The scientifically illiterate just can’t understand that. Even if you could charge at that rate the power has to come from somewhere.

[Pontiac]

for that energy to enter the battery in a few minutes means you need megawatts of charging power, which not many places have, and they won’t be cheap.

Good point.

A truly fast charge, a charge comparable to filling your gas tank (less than 19 minutes) would pull a huge amount current.

We’re talking industrial levels of current.

If we were to convert all personal transportation to Battery Power, every neighborhood would have a huge bank of electric transformers and very house would have it’s own large transform sitting on a pole outside the house.

Every home would have 3 phase service.

The amount of copper needed to build all of these transformers would hollow out the earth.

The true intent of the world’s leaders is to make us give up our cars and our freedom. To put us all in tiny houses or apartments. We will all own nothing and be miserable.

[unread]

"for that energy to enter the battery in a few minutes means you need megawatts of charging power, which not many places have, and they won’t be cheap."

And what if there are a hundred of these cars recharging all at the same time.. Or, in a large city, a thousand.?? Maybe in a place like LA. TEN THOUSAND.!?! How's that going to work.??

[verum ago]

Even if it’s true the batteries can be charged that quickly, there is still the considerable problem of power. It takes hundreds of millions or maybe a billion joules to drive a hundred miles, so for that energy to enter the battery in a few minutes means you need megawatts of charging power, which not many places have, and they won’t be cheap.

Using the commonly-stated rule of thumb of ~3 kWh per mile, they're claiming an effective charging rate of 4.7 MW for this battery.

I wonder how much heat they have to remove for this. Even if it's 99% efficient, it's still generating nearly 50 kW of heat in the battery.

[jonrick46]

I wouldn’t want to be near the power cable delivering that kind of power to such a battery. One mistake and it would turn you into smoke. It wouldn’t be something you would want fired up in the rain.