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Safe disposal of LiPo pouch batteries

As with many here on iFixit.com, have had the occasion to remove a failed battery and replace it with a new one. I am well aware the LiPo batteries can become violent if mishandled, they don't seem to like being bent, punctured, over charged or over drawn. The question is what procedure should be applied to ensure you are safely storing, transporting and disposing of them?

I know there are recycling options in some places, but the battery may still pose a fire or explosion hazard while being stored and/or transported for disposal.

A short time ago 9V batteries came under scrutiny for starting fires after being thrown in the garbage. It is now highly recommended that all 9Vs be taped up to prevent the contacts from shorting against other conductors when disposed of.

So what should we do with the LiPos?

Is there a voltage threshold below which we shouldn't worry?

Would fully discharging the cell (past the limit board) render them safe from puncture arcing?

What about packs that have already started to go critical (bloated packs)? how long do you isolate them before the blast danger is significantly reduced?

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Most refer to the Google answers, and I have actually read them before posting. The question is/was, what are you doing as a pro with the batteries. Most I guess are doing some combination of the discharge and destroy methodology. Salt water has some support, and some criticisms, and sand pails seem to be the primary safety kit applied. I have also seen LiPo bags, and wonder what their effectiveness is. With the recent Samsung battery issues, this is seemingly a bigger issue for us to tackle.

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So the general consensus (is to Google it!) is a combination of solutions. I have read many, MANY articles on the subject, and believe the safest discharge method would be in a sand filled container with a remote load. several days on a low current load should bring the cell below its arc level. The sand bucket would be the best way to handle a bulging cell as well. I believe the cell would need to be loaded at the battery terminals, past the limiting circuit. I have also since found 2 batteries that had fallen below the voltage needed to excite the limiter circuit thus rendering them useless. I am contemplating experimenting with charging them directly to the raw cells to see if I can "bring them back".

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Dave, through a google search I found this pdf. article on Lithium-Polymer Battery Safety and

handling instruction. It talks about storing damaged batteries in sand, in fire proof container, taping or insulating terminals,etc. Check the attached link,instruction and guide, Good luck.

I hope this helped you out, if so let me know by pressing the helpful button.

https://www.google.ca/url?sa=t&rct=j&q=&...

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Hello.

Try looking at the PDF mentioned...

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This method involves the saltwater dunk, which seems to be an interesting idea, but in practice multi cell batteries lose connection between cells from corrosion and result in a 0volt reading when testing, when in fact the cells still have charge.

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