Lithium-ion battery safety 101

for Jerommel:
https://www.google.com/search?q=lithium-ion+fire+fluorine

The concern is that the fluorine compounds produced in the flame of a li-ion fire are inhalation and skin hazards.

Interestingly, a while back, some tests done in an argon atmosphere (no external oxygen available) showed no HF produced.
This confused some people; no HF was produced because there was no combustion, no flame occurred, just venting, in the absence of any external oxygen at all.

If the magnet slips to the side and contacts the battery tube while staying in contact with the battery, you have a short circuit of the full capacity of one or more cells.

If the magnet is secured — fastened so it can’t slip sideways — as glued in the middle of a disk or ring of nonconductive material, that’s avoidable.

Here’s one for example: A little part from JAXMAN: 26650 battery connector

Thanks hank. Looks like jaxman connector is the best option atm.

Okay, thanks for addressing it.

it also depends on the INSIDE of the tube
my L6 and S70 have an anodized inside of the tube, so even if the magnet slides to the side there is no short (so I do not have any securing measures taken and use the fact that whey are loose in swapping the cells top/bottom at every charging, when removing the cells I plac the magnet from the bottom to the top and then in the charger so when inserting them I have onl ye swapping way to put them in.

Pictures? Follow the links in the original to see them and the source article.

Thought this thread is a worthy spot to put this article in

Quality reporting I know as details are a bit lacking - it’s unclear the brand of headphone or cells used…however it may serve as a reminder to people to be careful even with battery powered headphones

Headphone batteries explode

Hello Lightgecko. New guy here and I’m not sure what “sticky” means. Can you help me out please? Or anybody?

Thanks

It means the thread will always be at the top of the page where it can be easily found. Welcome to BLF! :slight_smile:

Oh ok. That makes sense. Thanks and thank you teacher!

My pleasure. :+1:

What is it with batteries and airplanes? Seems like most of the incidents happen in the air or is it just that they get more attention?

I actually have that same question about airplanes. I’m going to Florida April 9th and I have a rather large ANKER power bank which looks like it uses multiple 18650 batteries. I’m wondering/hoping I can take it on the airplane…
I’d use it just to charge my tablet and my other familys phones or whatever they have

all fire-related problems that happen on airplanes will show up in the news, and the sources discussed.
That’s because aircraft fires are taken quite seriously.
LMGTFY

Problems elsewhere, well, if someone happens to put it on YouTube we’ll know about it, otherwise maybe not.

For example, a while back, there were a lot of reports of vehicle fires in China attributed to li-ion batteries.
Then China cracked down on handling them and the stories disappeared from the news.

Checking today: china lithium battery fire? - Google Search

In the US:

  • Spare (uninstalled) lithium ion batteries must be carried in carry-on baggage only.
    • They can not be in your checked bags.
    • If your carry-on bag is checked plane side you must remove the li-ion batteries.
  • Spare batteries must be protected from damage and short circuit.
  • Lithium ion batteries are limited to a rating of 100 watt hours (Wh) per battery. (I want a 100 Wh 18650 battery!)
  • Lithium ion installed in a device are allowed in checked baggage.
    • Electronic cigarettes and vaporizers are prohibited in checked baggage.
    • External chargers are considered to be a battery so they can not be in checked baggage.

References:

https://www.faa.gov/about/initiatives/hazmat_safety/more_info/?hazmat=7

https://www.faa.gov/about/office_org/headquarters_offices/ash/ash_programs/hazmat/passenger_info/media/Airline_passengers_and_batteries.pdf

Thanks. I have the ANKER Powercore+ 26800 charger. I’m not sure how many Wh that is. Amazon answers said it can be brought on an airplane but I just wanted to double check

You should be good on the Wh.

FYI: Wh = V x Ah.

The charger is considered a battery so it should not be checked.

When I fly with batteries I always print out the FAA Battery FAQ and carry it with the batteries, just in case there are any questions.

Wow nice! Thank you very much! I would’ve never been able to figure that out. The thing is heavy.

Thanks, I will print that out tomorrow when the stepdad isn’t home. Florida is a surprise to him. He thinks it’s just 4 people going, so I’ll do it while he is at work

Printed and put in with the battery. So I should be good to go. Thank you all for the help. I appreciate it