I have a 2 month old FC40 and I got a spare battery when I bought it. One of the two, standard Phantom, batteries has begun to swell just today and is no longer holding charge in the third cell. I get the warning lights within about 60 seconds of liftoff. Until a few days ago I was getting about 10 to 12 minutes every time. Are there any options other than dump it ? With 40 or 50 discharges done should I be sending it back or asking for a replacement ? Thought and opinions appreciated. Cheers - Damian.