had a 3s 2100 inflate, ballon... whatever ya wanna call it. after it cooled down the balloning went away, we took a reading and it was around 10.5V after a flight.........ok so charged it back up and it read 11.3 , so I put in a flight and everything went well. now Im hearing I should throw it away and not to trust it. I dont understand that??? if it charges up to over 11V and works in the model , then why throw it out??

because it is damaged...if it is ballooned (or has ballooned) soemthing is fried...

soak it in saltwater and then pitch it

the swelling went down about a 1/2 hr after the flight, "sounds like a medical condition

No no no! Do not use this battery, and not take it indoor!
As exeter says: It is damaged. And it could catch fire at any time... Luckily it didn`t when it got balooned, but it is xtremely instable for now.
First discharge (outdoor), make some cuts in it and soak it in salt water for a few days. Still outdoor.

thanx for your concern but Im having a hard time believing its dead and looks to be normal, so why would it still take a 11.3 charge, thats what Im not understanding,not that i dont believe ya but anyone else have an opinion?

there is still voltage... and that is what makes it more volitile......

Please for the sake of the fire to your home that we do not want to happen... get rid of it....

No this is coming from me... charge it forget it,,, the battery itself isn't unsafe.....videos of LiPo's on fire do not phase me.,....

BUT once one is damaged,,,,, Yikes... get rid of it

Believe what you wish, but a ballooned lipo is a damaged lipo. Even if it's now back to normal size, it is now much more dangerous and unpredictable than it was before it ballooned.

Is it possible that nothing bad will happen if you keep using that battery? Sure, anything is possible. Is that battery far more likely to cause a fire than an undamaged lipo? YES!

Please balance the cost of the battery ($60-70?) against the cost of a fire that occurs in your hobby room, your car, or your house. Is it worth the risk?

- Jeff

thanx for the response and I keep the bat. in the barbque for now!! sure isnt making any sense paying $$$$ for something and turns out to be lethal............just like throwin money down the toilet, back to nimahs atleast for now

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Now would be a good time to think about what you might have done to damage the lipo. Don't get me wrong -- they occasionally fail on their own through no fault of yours.

On the other hand, if you ever discharged the pack below 9 volts or ever charged it at a rate greater than 2100 mA, you may have damaged it.

Another important point: A fully charged lipo in good condition will measure very close to 4.2V per cell, or 12.6V for a 3S pack (8.4V for a 2S pack). The fact that your 3S pack charged to only 11.3V is clear evidence that the pack is damaged.

For whatever reason, it is likely that one of the three cells in your pack has failed and will no longer take a full charge. Now when you charge that pack, the other two cells may be overcharged, as the charger tries to force the pack to 12.6V. It is not a safe situation to be charging that pack.

Except when over-discharged or charged at too high a rate, lipos are pretty reliable. Still, like any manufactured product, it is possible for one to fail even when do everything correctly.

- Jeff

bat. was always charged on the correct rate and never discharged below 9V.... it just charged to 12.5 V and was flown in the model>>>>>>>>>>>s omethin tells me these things go bad from human error, not sure but plan to find out, also thanx for the warning.. 14 day experiment in progress........... stay tuned

Here's a neat lipo pic[sm=spinnyeyes.gif]

I know it hasnt been 12 days since the last post but after charging,flying and discharge for several days it seems to be alive and well, although take great caution charging, transit and storage, meaning it still lives in the barbque, more to follow....

I wouldn't keep it in the bar b q [&o] If it goes up in there, it may screw up your next cook out [:'(] yuk[:@]

better it goes of "if it goes off at all!!in an enclosed metal area rather than a house,shop,car etc.etc. from what Ive been reading about 85% of these things goin off is human error.......but if it does happen to go off Ill let ya know

You are certainly welcome to do what you want with the battery. Just have a look at this before you charge it again and think about how much you are "saving" by keeping the battery:

http://www.laureanno.com/RC/fire-pics.htm

Personally, I almost couldn't sleep last night after I stumbled onto this story-- and I'm sure that there are more just like it.

thanx for that report..... sounds like the biggest mistake was this person was charging these dynamite stix indoors left unattended, so in anyones mind should be the #1 reason for not doing this procedure indoors or anywhere thiers possible risk of damage. like I said above 85% of damage is human error and nothing but!!! thats exactly why when I have anything to do with this bat. its clear of any possible damage!! its been almost a week and Ive flown this pack every day with no problems what so ever, but like I was saying if anything goes wrong ill let yall know, then you can tell me >>>>>>>>>>>&gt ;I TOLD YA SO


When I first got my lipo charger I tried to use an indoor 12V AC wall unit, but after some research found out it wasnt putting out the right V, so was forced to use the car bat. you talk about luck!!!!!!!! as youve probibly read, "most damage is incured inside a structure, so maybe Im lucky and maybe I wont be, time tells all