eli5, why can’t we have instant phone chargers?

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Hey guys, I don’t understand enough about electronics to answer this, but if my electricity at home is able to power a washing machine.
Should it not be possible to have like a super battery that goes 100% instant, and then release normal current to the phone until it’s charged? More like an instant power bank?

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14 Answers

Anonymous 0 Comments

We have those, they’re called capacitors. They don’t store a lot of power in small spaces, so your phone becomes big again.

People don’t want big phones so we have to use lithium type batteries which do not like to be charged quickly – they become quite hot.

Research is ongoing into finding capacitors that store energy densely (called super caps, don’t confuse them with snake oil laced “super caps” with Lithium Titanate Oxide or LTO batteries)

Research is also ongoing into making lithium batteries charge faster, that’s why we have batteries today that charge much faster than a few years ago.

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