Hi, with all the boom of “fast charging” I’ve been wondering why can’t we have phones or electric cars with twice or more the charging ports. I understand that is inconvenient to plug two chargers instead of one but wouldn’t that increase the charging rate, solving one of the problems with electric cars (refueling gas is way faster). As this is not the case there should be a good reason why it is not feasible, what is it ?
(I did not find anything close to convincing in google).
In: Engineering
It’s fairly easy, to engineer a faster charging port – just add more (or larger) conductors to carry more current, and crank up the voltage. A single charge cable can supply plenty of power.
The problem, is that all of that energy needs to get into the battery. And the battery can only handle so much energy at a time. Add too much too quickly, and you might accidentally overcharge the battery, or you might overheat it. Both of these will damage the battery (and by extension, possibly the device and surrounding environment). So, charging a battery (or set of batteries) is a complicated endeavor that needs to be done carefully, and the batteries themselves need to be designed to charge quickly, which isn’t trivial, and won’t work for every application. (Tesla, for instance, has special heaters and coolers to keep the battery at the right temperature for charging.)
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