[VBprogrammer]

Really? Do people describe chargers or power supplies as power banks? Surely the 'bank' part of it implies some kind of storage.

[Pxtl]

I do hear chargers with a large number of ports called "power banks" - I think the implication is that it's like a line of ATMs serving many customers.

[goatinaboat]

No, the implication is that people don’t understand the difference. These are the people who call every photo with people in a “selfie”.