where's the kaboom?

My previous post missed the non-removable from your post, and I suspect that non-removable battery devices have protection circuits.

Had Tenergy 9v. NiMH melt inside a device last week. It was not the device’s fault. Put a new one in and works fine. What would cause it to melt is beyond me.

How old was the 14500 battery and where did you get it from? Seems strange that a small drop would cause the battery to leak. And when was the last time it was charged?

Glad it didn’t ruin your GT Micro (and perhaps your cat saved it)!

First shots fired in the War With The Machines?

EBL 14500s, April 2018 (looked it up), Amazon.

Can’t say it was a drop, as he knocks things over all the time. Either swinging his tail around, or rubbing his face on things. Nothing to purposely knock things over like you see some cats do.

Don’t recall when it was last charged. Blinked out 3.6V a few days before, which is about when I’d top it off When I’d Get Around To It.

I’m hoping so. I always keep ’em facing me (lit sideswitch) so I can see where they are in the dark, and it was fine one day, dark the next.

At least no kitties were hurt. When I was a kid, we had a cat that burned his lips off biting a lamp cord.

Maybe it was a bad battery? I’ve read that it’s risky to buy Li-ion batteries on Amazon and eBay.

Holy $hit, EXACT same thing happened to Max (13 YO and still with the living) Saw the idiot chewing an extension cord and it shorted in his mouth. Damn cat must’ve jumped 4 ft in the air. Not sure if his lips were burnt because I didn’t check. Hasn’t happened since…Stupid Max

Don’t think so, as I got a few “in service”, and they’re fine. All came pretty close to stated capacity.

Did get 1 dud out of 16 (2 orders × 8 cells), grexed, and their CS sent a whole new 8pak!

They seemed to be pretty good, all in all.

There is no mistaken it. All you saw were teeth looking at him. My memory is getting bad. It wasn’t my cat but someone I knew. Either way, curiosity almost killed the cat.

i have 3 cats, all are beasts, all have awesome personalities, I keep NO light on ANY shelf. Ever. I keep all my lights either on display with batteries or in my drawer with batteries, all I look at/check every day and the cats couldn't touch if they wanted to. Believe me, they want to lol. Then again my collection isn't hundreds of lights. It's tens of lights..

Lightbringer, I want to remind you that Li Ion battery electrolyte contains hydrofluoric acid.
It has excellent absorbtion by skin contact and won’t cause pain.
But it will start eating your bones (calcium).
Of course, quantity and length of exposure play a big role in how severe it is but you’d rather read up on it or talk to a doctor, it’s scary stuff.
IIRC the “antidote” is just big quanities of supplemental calcium so the acid eats that instead of your bones.
Hope you’re well!
Likely it’s already out of your body but it might be worth looking into.

That is terrifying information, but thank you for it

Looks like your battery at 3.6 volts just had enough energy for the warm fuzzies instead of the loud KaBoom.

No worries. I buy milk by the gallon jugs. :laughing:

And now I fully understand Marvin’s pain.

thats what I was tinkin'

Yabbut, what made it fizz to begin with?

No physical damage anywhere, no dents, dings, split-wraps, nothing of the kind.

That’s what surprised me, that “out of nowhere” it could just hæmorrhage its innards inside the light for no reason.

This can be true, but only after exposure to water (moisture in the air counts)

Important thing for folks to know. This is an exceedingly rare event that Li-ions will leak without more catastrophic failure, but in the case that it does happen, clean up should be taken extremely cautiously. HF is a serious bastard.

First and foremost is skin PPE. Double nitrile gloves.

Use dry absorbents for bulk cleanup. Double or triple bag the contaminated waste products.

If and when you need to use water for cleanup, use COLD water. Hot water plus organic LiPF6 based electrolyte is a guarantee to form at least some amount of HF. Below room temp water OTOH is fairly safe.