Battery Drop! Dent! damn!!!!

[JJ Hair]

Hey guys and gals of the ECF!!!
Just received two sets of 25r’s from IMR and have charged and drained them maybe two three times each. I dropped one minutes ago and have dented the edge of the negative. A very minor dent on the edge of the negative which has created a cery slight dent on the flat or bottom of the negative. I tried to get a pick but it was hard to capture. Is this safe to use?
Regards

 

[Eskie]

Sorry, can't see in the photo. Is the wrap damaged or the metal can itself? If it's the can it's to be recycled.

 

[JJ Hair]

Sorry, can't see in the photo. Is the wrap damaged or the metal can itself? If it's the can it's to be recycled.

Wrap is fine but there is a bit of a flat spot. Then the bottom has a very slight crease for lack of a better description.

 

[G and C]

I would say remove the wrap for a closer inspection of the can itself. But only if you have the ability to re-wrap, which is super easy with the right stuff.

If you're really in doubt, recycle it. Just not worth the risk in my opinion.

 

[Eskie]

Problem is if you did enough damage to dent the can you may have damaged the internals. If you have an extra wrap pull this one off and examine the metal itself. If it's fine, rewrap and use. If it's not, rewrap for safety and recycle. It can be hard to see what's under the wrap and as it's easy to replace it's the best way of examining the actual battery for any damage.

It may well be just fine. Just give it a good look, and if still in doubt try another photo and posting it.

 

[Storm52]

Are you certain that the wrap isn't flattened and the base is fine?

 

[JJ Hair]

Are you certain that the wrap isn't flattened and the base is fine?

Wrap is fine. The bottom looks like it has been push up a tiny bit. There is a minir flat dent on the edge of the rim.

 

[JJ Hair]

Problem is if you did enough damage to dent the can you may have damaged the internals. If you have an extra wrap pull this one off and examine the metal itself. If it's fine, rewrap and use. If it's not, rewrap for safety and recycle. It can be hard to see what's under the wrap and as it's easy to replace it's the best way of examining the actual battery for any damage.

It may well be just fine. Just give it a good look, and if still in doubt try another photo and posting it.

Another question can i use the undamages one as a single in a single battery mod?

 

[Storm52]

Another question can i use the undamages one as a single in a single battery mod?

Certainly.

 

[JJ Hair]

Problem is if you did enough damage to dent the can you may have damaged the internals. If you have an extra wrap pull this one off and examine the metal itself. If it's fine, rewrap and use. If it's not, rewrap for safety and recycle. It can be hard to see what's under the wrap and as it's easy to replace it's the best way of examining the actual battery for any damage.

It may well be just fine. Just give it a good look, and if still in doubt try another photo and posting it.

 

[Punk In Drublic]

I would not risk using a dented cell. The outer casing is not that thick and any imperfections to the internals, even at a microscopic stage can lead to a failure – how dramatic, couldn’t tell ya…never had one fail!

As for your lonely widow battery, absolutely use it in a single cell device. It just cannot be married again.

 

[JJ Hair]

I would not risk using a dented cell. The outer casing is not that thick and any imperfections to the internals, even at a microscopic stage can lead to a failure – how dramatic, couldn’t tell ya…never had one fail!

As for your lonely widow battery, absolutely use it in a single cell device. It just cannot be married again.

I was waiting for you to show uo! Hapoy new year! Yeah that was my gut but was kinda hoping to be convinced otherwise. These are the batteries we spoke of last time. I will recycle the damaged cell.

 

[Punk In Drublic]

Happy New Year!!

So those are the ones you ordered from the US? (Can’t remember what vendor). They didn’t last too long…or at least the one didn’t. But no fault of the battery. Maybe time to invest in a large pillow for your battery swaps

 

[smacuser]

I can't see any dents. Maybe some close ups?

Oh, yeah, now I see it.

I'd say you're good.

Now, you just need to rewrap your battery.

Though, if it's a pair, you wouldn't do bad if you were to start over.

 

[Punk In Drublic]

I would not risk it. You have a copper sheet with a graphite coating that is ~mm thick, this is separated from an aluminum sheet with a graphite coating by a thin plastic film. Any imperfections with the aluminum and or copper from say a shunt could result in burning through the plastic film causing a short. Below is a microscopic picture of a failed cell that demonstrates breaches to the plastic film. Each point is 20 μm, a human hair is 50 μm for reference.

 

[Jwaterski]

It's probably fine, replace it! If you stand on your roof in a thunderstorm, you probably won't get struck by lightening either, I still wouldn't do it.

 

[sonicbomb]

Based on the second set of pictures, definitely recycle and replace.