I know what a power bank is now - it's just an extra battery for a cell phone. I don't see why they would be treated differently from any other spare batteries - at least the ones that are the same size as a cell phone..
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Lithium batteries with 100 watt hours or less in a device
Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only. Lithium metal (non-rechargeable) batteries are limited to 2 grams of lithium per battery. Lithium ion (rechargeable) batteries are limited to a rating of 100 watt hours (Wh) per battery. These limits allow for nearly all types of lithium batteries used by the average person in their electronic devices.
- Carry On Bags: Yes
- Checked Bags: Yes (Special Instructions)
This instruction covers spare lithium metal and spare rechargeable lithium ion batteries for personal electronics such as cameras, cell phones, laptop computers, tablets, watches, calculators, etc. This instruction also includes external battery chargers (portable rechargers and power banks) containing a lithium ion battery. For more information, see the FAA regulations on batteries.
For lithium batteries that are installed in a device (laptop, cell phone, camera, etc.), see FAA regulations for "portable electronic devices, containing batteries".
Lithium batteries with more than 100 watt hours
Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only.
- Carry On Bags: Yes (Special Instructions)
- Checked Bags: No
With airline approval, passengers may also carry up to two spare larger lithium ion batteries (101–160 Wh) or lithium metal batteries (2-8 grams). This size covers the larger after-market extended-life laptop computer batteries and some larger batteries used in professional audio/visual equipment. There is a limit of two spare batteries per person for the larger lithium ion batteries described above (101–160 watt hours per battery. For more information, see the FAA regulations on batteries.
This instruction covers spare lithium metal and spare rechargeable lithium ion batteries for personal electronics such as cameras, cell phones, laptop computers, tablets, watches, calculators, etc. This instruction also includes external battery chargers (portable rechargers and power banks) containing a lithium ion battery. For lithium batteries that are installed in a device (laptop, cell phone, camera, etc.), see FAA regulations for "portable electronic devices, containing batteries."
That is the same; most external batteries for cellphone and tablet are 5V.TSA allows 100 watt-hour (or less) battery in carry ons. In the Philippines, I was told by a friend that the airline limit is 20,000 Mah for the domestic flights.
How would a Customs official know or even care that your wife does not dive? Why would a couple each with an UW camera be a problem?I have been asked several times going into Cozumel about my camera gear. It is one Nauticam housing, camera, lenses and strobes. Never had a problem, but I have been asked. I have two cameras and would like to bring both but I am not going to push my luck. I could say it is my wife's but she is no longer diving for the time being. Hmm.
Makes me wonder how a wife and husband team each with an UW camera would fair.
As long as you're traveling together, great. Do you have a problem with such a minor lie?I could say it is my wife's but she is no longer diving for the time being.
One each works easily.Makes me wonder how a wife and husband team each with an UW camera would fair.
It isn't a lie; as a married couple both cameras belong to both of them, just like everything else they own. That's something my wife reminds me of all the time.As long as you're traveling together, great. Do you have a problem with such a minor lie?