vintage Shu Cat

I have two recently purchased 2c Lipo 5700 25C soft Onyx packs and after two uses they seem to be holding air. The packs have "puffed" up and feel like a balloon. I was told that was an indicator they were ready to go but they are only 3 months old and have not been beaten up.

Are they still OK to use or ready to go up in flames?

RatsacK

iTrader: (21)

Put up some pictures if you can. I guess it depends how "puffed" they are. Some people continue to use them for a while if they're slightly puffed, but if they're massive, try warranty or get rid of them.

Rysuleod

iTrader: (1)

Get rid of them as soon as possible. Anyone telling you to run puffed lipos is nuts.

20 SMOKE

iTrader: (103)

contact onyx on them,don't use them.as stated above some people do use a slightly puffed pack but it is not safe to

TheRcKid17

iTrader: (21)

If you have a lipo charge bag i would suggest putting them in there

Jeckler

iTrader: (6)

We also need to know your usage habits. What vehicle, esc, motor, charger? Were they stored charged or discharged, what voltage?

brainiac

iTrader: (11)

Do you use a battery charger with a lipo charging program?

Do you charge at the safe charge rate for your battery?

Do you have LVC set on your ESC?

vintage Shu Cat

I have an Onyx 230 charger and run the exact specs the instructions states...
I charge on the Lipo setting for 2c at 5.5A.
The charger is a auto charger the same brand as the batteries.
The batteries are soft sided (not the hard packs) much like the old NIMH packs, if that makes a difference.

cs3087

I'd get higher C packs 25c isn't really enough for high draw systems

vintage Shu Cat

I never thought anything of it due to a change in Temp and they puffed up a bit shortly after I got them.