My 14500 battery explosion, with pictures

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penumbra
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follow the proper li-ion charging algorithm ?
dazzleaj
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Read all this. Good stuff. Glad no one has been hurt by these so far.
I read some where that the chance of being seriously hurt by a Li Io battery was about the same as being hit with a fish dropped by a bird while walking in the desert… I think I’ll build that wooden box and wear a helmet in the desert…

Might just weigh all my batteries and test the PCBs also. I usually check voltages anyway. I gave my grandsons each a small LED flashlight with a 14500 and a single cell charger. Gonna order some good cells and take the GTL cells away!!

Good posts here, for the most part. Thanks for the info.

In life there are three kinds of people: Those that make things happen, Those that watch things happen, and those that wonder what happened.

GBD
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Small wonder they allow Tesla cars in urban areas.

kralyevski
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i remember seeing a picture of lithium battery exploded in a car and the car had all messed up part of seats and gearshift and handbrake…anyone remember what thread was that?

“the easiest way to become a MILLIONAIRE is: first you become a BILLIONAIRE than you start to be flashaholic”

Chloe
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Was it this (e-cig)?

kralyevski
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yes, that is the one, thanks! Smile

“the easiest way to become a MILLIONAIRE is: first you become a BILLIONAIRE than you start to be flashaholic”

hank
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I’ve seen folks saying that 14500s aren’t going to contain enough energy to be much of a worry when recharging.

I thought this example worth bumping up.

Yeah, charging these things outside is a drag — our family suddenly has a lot more li-ions because bicycle lights all come with those nowadays.

And I’m now on charger patrol every evening making sure there are no li-ions being recharged INSIDE the house unattended.

Argh.

old4570
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1/ Three possible causes ...

A) The battery itself - unlikely ...

B) The charger or device causing the problem ( Short )

C) The protection circuit itself

2/ Anything electronic can develop a fault , so it goes for the protection circuit itself . Cheap batteries mean even cheaper protection circuits , and if the quality control on the protection circuit is anything along the lines of standard Chinese practice , then Im amazed at the lack of boom events , or perhaps we are just not hearing about them .

3/ The 14500 is very much like the 16340 , a small battery .  I don't know why people push them so hard . Lets call capacity 700mAh to be generous , and say some one is pulling two Amps from the battery , that's 3C .  Is the battery going to handle it , and more worrying is whether the protection circuit can handle it .

4/ Just something to think about . 

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

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