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› Batteries puffed up
03-31-2009 09:54 PM  9 years agoPost 1
Fury91

rrNovice

Kentucky

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I just took out my lipo batteries that i had in a case for the winter. 2 of them have a slight puff to them. They are Flightpower 2170 3s 11.1v when i plug them into the balancer they don't register or turn the balancer on. Are these batteries shot?

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03-31-2009 09:56 PM  9 years agoPost 2
Heli 770

rrProfessor

USA.

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How did you store them? Did you put a store charge on them.

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03-31-2009 09:58 PM  9 years agoPost 3
TJinGuy

rrProfessor

Socorro, NM - USA

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My first guess is yes they are shot. BUT they might not be totally lost. How much is slightly puffed? Do you have a volt meter to check the cell voltages with? If they are simply dead then maybe a charge will breath some life back into them. Most likely they are done being flight packs but they may serve a purpose somewhere else.

- Chris

Team New Mexico
TJinTech

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03-31-2009 10:23 PM  9 years agoPost 4
Saint728

rrProfessor

Honolulu, Hawaii

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Do not use LiPo batteries if they have even a slight puff to them. I wouldn't trust them as far as I could throw them. There is nothing you can do to make them good again. You can take off the puffed cell on each pack and use them as a 2S or combine them into a 4S. I've had LiPo packs stored for over a year and they are still good.

Take Care,
Cheers, Patrick

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