No the relevance is to the part before your question.
But to answer just use it if it has enough mAh (I use some non good brands with low mAh in some lights I rarely if ever use but want to have ready anyway)
If you feel not 100% sure if it is safe, just dispose of it
Oh yeah, that’s just my case. I have a somewhat defective Olight S30 (high and turbo flicker wildly, but moonlight, low and medium all work fine) that I’m leaving at home for general utility, mostly for my mother’s convenience. It doesn’t need a burly battery, just one that won’t go BOOM.
That cell seems OK for low-drain applications. But IMHO, muggles should not be given LiIon’s simply because they will not understand ALL the safety protocols- to them, a battery is a battery and it can’t really hurt you. Techies and enthusiasts can understand why these are different and must be treated differently. I have just one family member who I’d trust with LiIon- I know the rest too well to chance harming them through their own, er, “lack of sensibility”
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.
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.
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