 Hi chaps... yes I bent it a bit But should I try charging it? This battery landed in the plane ok but was not so happy stopping so quick... nose dive
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If I was you I would very slowly charge it up at say 1/4 C outside/ in a safe place for it to catch fire. If it charges sucsessfully, discharge it very slowly, and repeat at a slightly higher C rating. Repeat this until it is at its normal kind of condition. Also, make sure it is handeled carefully, as the internat connections could be mm from touching each other. A more sensible solution would be to dispose of it carefully. I do not take any responsibility for anything that might happen. Hope it lives to fly again, birdy
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Hi Jon Bin it straight away. In that condition I wouldnt touch it with a barge pole, and would use one if I charged it Garry
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 I agree bin it now before it burns you house down  .
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 For the price of another battery is it worth it !!!! Bin it ,its just not worth the risk. Look though the forums and you will see why
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Jon..........when the guys say BIN it, please do not take them literally. Recycling depots have a receptacle for such batteries.
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 You can safely discharge it first by immersing the pack in salt water for 24 hrs. Just do it out side and make sure the terminals can't short out.
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 I damaged a battery in a crash, slightly crushed pack at one end, not as bad as this. I charged it up and it seemed to work. But only for one cycle, after that it was usless. I only damaged one cell though so I've kept the other two to make a 2S. I was lucky, mine was a cheapo 2000 mah 3s not a Flightpower 4S 
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From all your comments it looks like its proving to be a more costly crash than some of my clubs members were thinking... They said ,and others have too , that a low charge and discharge will indicate if its going to fly once more. I have also heard that rolling pin 's have been used in the past to reshape bent Lipos... No... I wont be trying that! Think I may just set it up for a charge in the middle of our back yard with the video camara running... It may make an interesting clip! Roll up, Roll up, Roll up... "Veiwing tickets will be available at just £2.50 each.. funds collected will be donated to Jon's new battery fund"  oooh I could just say a few things ....but my words would only get deleted and I'd be banned from this forum great hobby jon
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| Edited: 27/09/08 09:24 |
 Bin It !! - incidentallty, my local re-cycling epot have no facilities dedicated to this, and they ( along with many other people ) suggest that it is fine in the regular trash - provided it has been correctly discharged.
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| Edited: 27/09/08 09:39 |
Now I think I am going to upset some of you? or am I going to upset some you? I took your advice and decided to bin it but then set it up to discharge it prior to its disposal.I set up my video camera just in case there was any spectacular reaction....but nothing....It showed no signs of being electrically damage so I set it up for a slow charge and it did!. .. a further discharge at a much higher rate was then carried out. Still no problem showed up.. Its undergoing a full rate balanced charge at this very moment and has now taken well over 4000 mA so far... It’s not even getting warm !!!!... Hopeful Jon... standing by for your backlash
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| Edited: 03/10/08 14:21 |
 just as long as you don't store it in the house or near anything flammable in the garage...
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Jon - it may well accept and deliver a charge, but that does not mean it is safe. The reason most of us advised you to bin it was not because we thought it may not perform, but it is very likely to be unstable chemically. LiPo cells are not constructed using metal canisters like the older nickel based cells - rather flimsy and thin "pouches". The electrolyte paste within could easily start to finfd its way out through what is clearly a severely damaged ( physically) package. Personally I would be very uncomfortable in having this thing in my premises, also there could easily be fractured connection within the battery and this could let go at any time with potentially diastrous results - my advice is unchanged - BIN IT
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| Edited: 03/10/08 17:46 |
..... Thank you Timbo.....Its on its way out... I will ask advice from my local tip tomorrow.... da da dida dadi dadi dadi da da da dida dadi dadi dadi da.... Sadly I must report that this £114.00 battery was pronounced dead at 17:46 on the 3rd Sep 2008 after receiving much love, care and plenty of first aid from Dr Jon as best as he could give. May this ticking time bomb R.I.P. The Moral of this story is:- "When doing a nose dive, level out a bit earlier"
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As a last resort Jon you could try emailing a picture to flightpower and get their verdict - I am sure it will be the same as they would not want any liability should a problem occur....but you never know - they might do a special price for a replacement? Its worth asking as it will cost nowt.
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You crafty old RC/flyboy you... I'll give it a try
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 Bucket of salt water 24hrs then in your normal waste. LiPo are good energy stores when active and one of the best 'environmentally' sound batteries when expired. Just google LiPo disposal. Hope you had a fair number of cycles out of it!
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Thanks for that idea... It had only flown twice Still the good news is I got a new plane and a new battery
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denotes 
