[NSRCA-discussion] Battery puffing question?

[adriancwong at earthlink.net]

To all,

I don't have much experience on li-po batteries. However, I have a pack puffed up on me recently. I submerged it in salt water for a few days before I discard it in a recycle bin, is this the most correct way to treat these kind of batteries?

In addition to overcharging, cells not balanced, run them too low ... etc. Is it also true that the wrapping/ packaging can be damaged - helium gas leaks out and mixed with oxygen in the air, causing it to puff up?

Also, if you have to send it back to the manufacturer for exchange, how many days should I submerge it in salt water before it's safe for shipping?

I assume once it is safe for shipping, there is no way the pack will give out any more lithium gas during shipping causing it to flair up again when it's open by the manufacturer?

Thanks for info,

Adrian




-----Original Message-----
>From: MATT LIPRIE <mtliprie at centurytel.net>
>Sent: Nov 9, 2008 5:15 PM
>To: aabdu at sbcglobal.net, General pattern discussion <nsrca-discussion at lists.nsrca.org>
>Subject: Re: [NSRCA-discussion] Battery puffing question?
>
>Anthony, I recently had a puffed Thunder Power pack.  I let it cool down and 
>the swelling decreased; not all the way, but enough.
>
>I decided not to take a chance by cycling them again so I sent them back to 
>Thunder Power, and recieved a new pack for a discount.  I believe that would 
>be the best way to go.
>
>Regards,
>
>
>
>Matthew Liprie
>
>
>BTY:  How are the pair of Genesis wings that I sold you.
>----- Original Message ----- 
>From: "Anthony Abdullah" <aabdu at sbcglobal.net>
>To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
>Sent: Saturday, November 01, 2008 3:00 PM
>Subject: [NSRCA-discussion] Battery puffing question?
>
>
>>I have a Zippy-H 2200mah 3S pack that I use in a small electric plane. I 
>>was flying it today and it the plane lost power pretty quickly. I landed 
>>and noticed that the battery had puffed on me. It was warm to the touch but 
>>not hot. I let it cool but it is still a little puffy almost like a ziplock 
>>bag with a little air in it.
>>
>> Question: Should I try to cycle the pack or just chuck it and move on? Are 
>> Lipos kaput once they puff or can they still be used? I didn't abuse the 
>> pack and it barely flew long enough to warm up.
>>
>> Thanks for any info and suggestions.
>> Anthony
>>
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>> NSRCA-discussion at lists.nsrca.org
>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>
>
>
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