I’m not sure I understand the science behind that: they insist on showing a actual phone, running normally, therefore I’m assuming that means the battery isn’t

I’m not sure I understand the science behind that: they insist on showing a actual phone, running normally, therefore I’m assuming that means the battery isn’t different, right? The WSJ article doesn’t exactly give much details. That thing is fed with standards copper-wires that can handle current, that can be of a certain voltage and amperage -- both are presumably linked. You can do funky things with time, like alternating, but… other than shove with higher voltage, I don’t see how you can feed that much energy in there, not unless you change the battery technology. And that’s not possible. Therefore, what they have and the big bulky thing is a prototype battery. IT is an order of magnitude too big for the moment — not really a problem until you go though industrial design, I’m guessing. One that appears not to heat as much, otherwise that think would be burning when holding. My question is: why do we have to guess so much from a video?