Puffed lipo after flight

[stathis]

I've noticed that two of my 5 TP's get puffed after a flight. They have around 15 flights each and no accident. Is this normal?

[Billigan]

No thats not normal. What size packs are they & how much are you putting back in them after flight.
You should only put back in about 75 to 80% of the battery's capacity.
Drain them down to far and bad things could happen.

[stathis]

Thanks Billigan. Batteries ate TP 2100. It seems that i drained them down too much the last flight. It is time to get a decent charger to show me what i put back in. Now the question is, do i keep using the batteries or not?