I have a 16000mAh power bank that I use to charge my phone and iPad. I was concerned of it size being a problem for Canadian-USA border security.

Is this actually a problem or will they not even care? I know this may seem like a dumb question.

  • That depends on the airline, the airport , the terminal ,the security personal.. all of which have a say and all can authorize or negate .. Too many variables to have an exact and correct answer . Jul 1, 2016 at 6:29

2 Answers 2


When I travel between Ireland and the USA about five times a year, I carry with me in carry-on luggage:

  • A 17" laptop
  • An iPad
  • An Android tablet
  • Two or three mobile phones
  • Cables for the above
  • A USB power block
  • A small power bank (not 16000mAh, though)

And I've never had a problem.

  • 1
    Thanks for the information, that's sound almost like what I'm bringing :)
    – tycrek
    Jun 30, 2016 at 21:59

You mean one of those USB batteries? They're not much bigger than an iPhone so no, no problem at all.

However, you should not check batteries.

  • Thanks for the info. Just wondering, why not check them?
    – tycrek
    Jun 30, 2016 at 22:00
  • Lithium batteries have had some incidents of spontaneous combustion. It is much easier to handle this in the cabin vs the hold.
    – DTRT
    Jul 1, 2016 at 12:29

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