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(discharged) Super capacitor in checked luggage on airplane?
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tggzzz:

--- Quote from: wraper on January 17, 2023, 11:23:04 am ---My experience is to be persistent but polite.
...
Some information paper to show what it is certainly helps.

--- End quote ---

I did that with my daughter getting into Canada for a skiing holiday ~20 years ago. It took about an hour; the other holiday makers were not amused at the delay.

Paperwork didn't help. In fact it actively hindered the process: two new passports set alarm bells ringing.
Kasper:

--- Quote from: Psi on January 17, 2023, 10:44:10 am ---
--- Quote from: tggzzz on January 17, 2023, 08:40:52 am ---
--- Quote from: Psi on January 17, 2023, 06:57:51 am ---You just want it obvious that you know what you're doing when they bring in an expert to look at it.

--- End quote ---

<verbal diarrhoea>


--- Quote ---That will always be better than just a large supercar capacitor with no other info.

--- End quote ---

But will it be good enough?

--- End quote ---

Who knows, but it's better than nothing.

--- End quote ---

But is it better than shipping it with a real courier instead of a friend?
Robert763:

--- Quote from: wraper on January 17, 2023, 11:23:04 am ---My experience is to be persistent but polite. One time they tried to deny me bringing incandescent bulbs onto the plane. I was persistent enough they brought prohibited items booklet where economy bulbs were listed. I did not give up these were not economy bulbs until they got frustrated and let me through after like 15 minutes wasted.
I also brought some chemicals which they tried to deny but I got them trough eventually. Even though one of them was actually prohibited. Some information paper to show what it is certainly helps.

--- End quote ---

So why do you think it is OK to carry a prohibited item? They are prohibited for good reason. You either had a actual or potential weapon or something that was a risk to aircraft  / passenger safety.
Robert763:

--- Quote from: tszaboo on January 17, 2023, 04:31:14 pm ---<SNIP>

Although I just saw security stopping and checking someone's Christmas bread (filled with dried fruit and almond paste) for drugs or bombs. Sometimes they checked my coat. I just told them that I make my bombs in my other coat, they weren't amused.


--- Quote from: Robert763 on January 15, 2023, 02:43:03 pm ---The energy limit for batteries is 100 Wh or 360 kJ. A 310 F 2.7 V capacitor is 1.1kJ so well under.

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The limit is in place for the lithium content, not the energy capacity.

--- End quote ---

No, the 100 W limit is not about lithium content, just energy. Lithium ion cells don't contain any metallic Lithium. There is a separate limit on metallic Lithium content (2g) which mainly applies to primary cells. Exceeding either 100W/h or 2g Lithium makes a battery (or large cell) illegal to carry on a passenger aircraft.

Food containing almonds can trigger some types of explosives detection.
wraper:

--- Quote from: Robert763 on January 17, 2023, 09:17:32 pm ---So why do you think it is OK to carry a prohibited item? They are prohibited for good reason. You either had a actual or potential weapon or something that was a risk to aircraft  / passenger safety.

--- End quote ---
There was totally no risk. It just falls into oxidizing agents category which is prohibited. Why? Because I needed this drying agent for gas analysis to do my job. As of dangers, if there was condition when it would pose some danger, it wouldn't be our main trouble as it decomposes at 250oC and there wasn't that much of it to begin with.
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