Swollen Li-ion Batteries

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   To avoid thread-jacking the other thread currently going on about lithium batteries, I thought i'd start my own.
I have a couple of lithium batteries from back when China would ship them to the UK that I have used for running my small 12V setups.

One is fine, but the other has become slightly swollen after a period of no use. Does anyone have any expertise regarding this? 

Is it still safe to use, is there a way to reduce the swelling, or should I be looking for somewhere to dispose of it?

Edited by Blaize110 - 06 July 2015 at 7:18pm

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Blaize110 Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 11 May 2010 Location: Gloucestershire Status: Offline Points: 673	Post Options Post Reply Quote Blaize110 Report Post Thanks(0) Quote Reply Topic: Swollen Li-ion Batteries Posted: 06 July 2015 at 7:17pm
	To avoid thread-jacking the other thread currently going on about lithium batteries, I thought i'd start my own. I have a couple of lithium batteries from back when China would ship them to the UK that I have used for running my small 12V setups. One is fine, but the other has become slightly swollen after a period of no use. Does anyone have any expertise regarding this? Is it still safe to use, is there a way to reduce the swelling, or should I be looking for somewhere to dispose of it? Edited by Blaize110 - 06 July 2015 at 7:18pm

ceharden Members Profile Send Private Message Find Members Posts Add to Buddy List The 10,000 Points Club Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11776	Post Options Post Reply Quote ceharden Report Post Thanks(0) Quote Reply Posted: 06 July 2015 at 7:26pm
	You can try charging it at a very low rate, the gasses may recombine and the battery shrink back but you need to be very careful and do it in a safe place. Li-Ion and Li-Po batteries do not like being stored in a discharged state.

Saturnus Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 13 July 2010 Location: Copenhagen Status: Offline Points: 2025	Post Options Post Reply Quote Saturnus Report Post Thanks(0) Quote Reply Posted: 06 July 2015 at 7:35pm
	I would get rid of it as fast as possible to be on the safe side. What's £15-£20 for a new battery compared to having your house burnt down? Edited by Saturnus - 06 July 2015 at 7:35pm

lutkeveld Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 23 September 2013 Location: The Netherlands Status: Offline Points: 517	Post Options Post Reply Quote lutkeveld Report Post Thanks(0) Quote Reply Posted: 06 July 2015 at 8:35pm
	This guy has a great solution (not): https://www.youtube.com/watch?v=lE9FFy_MbC0 But seriously, get a high quality pack the next time. You don't want to have these, they aren't even that cheap when you factor in cycle life.

Blaize110 Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 11 May 2010 Location: Gloucestershire Status: Offline Points: 673	Post Options Post Reply Quote Blaize110 Report Post Thanks(0) Quote Reply Posted: 06 July 2015 at 9:40pm
	Thanks for the tips, looks like it's about time to replace this one then.