Batteries cracking

[MagicDot]

Hello, best community in the world...

I'm having issues and I hope you can help.. Recently my 6p stopped working.. Opened it up and the black AW battery I had in it had split the wrapper.. Since I needed another battery, I took a tenergy battery from another light.. But this one had also split the wrapper and one end of it had popped off like a coin coming out of a roll of coins..

Then, I took another tenergy battery I had and put it on my Pila charger and a few seconds later, the charger said it was done and out of curiosity I put a meter on it and my 18650 was reading 4.12v....

What's going on? Is my charger screwed or what? The charger isn't even a year old and nor were the batteries. Did I over discharge them or something or is something else going on?

I just ordered another two black AW 18650s and don't want them screwed up, too..

Help?

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[donn_]

We need more info. Based on what you posted, it sounds like you aren't taking good care of your batteries.

Do you have a DMM?

Sent from Amityville, using my dishwasher.

 

[MagicDot]

What's a "dmm"? Digital multi meter? Because I do... I will admit I probably didn't charge them frequently, but I figured since I wasn't using them so much they would be OK.....

What other info could I give to help solve this problem?

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[LEDAdd1ct]

1) How old are they?
2) Have they been left in extreme warmth?

Sent from my underground bunker via fruitfly

 

[MagicDot]

Less than a year old. I carry the light on my belt so they're not in "extreme" temperatures like in a car in the summer or winter...

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[donn_]

Tell us how the cells check out, voltage wise, on your DMM.

Sent from heaven, using FireFox V-whatever.

 

[LilKevin715]

I'm assuming your 6P is bored for a 18650 cell?

 

[psychbeat]

Some of My aw 2600s have cracked wrappers.
It's normal - there's a thread about rewrapping if u scroll down a bit.

I prefer the stock green wrapper on my unprotected panasonics over any of my protected cells.
Be careful as the strip going to the neg protection circuit can short & it sucks when it does....