Why are we not already able to “instant-charge” EVs, smartphones or other batteries?
In: Physics
12 watt-hours is a typical capacity for a cell phone battery.
To recharge a battery that size from empty to full in one second would require 43 kilowatts. Basically the same as a car charger (ignoring all the power conversion that would be necessary)
Imagine if you had to shove a Tesla plug into your phone…
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