I have had my phantom 2 a few months now. Since February or March 2014. Ive flown it about 25-30 times since. Im now having a problem with it going into low voltage mode or whatever you want to call it. The back lights will start flashing red like the battery is critical and start to descend. The battery readout on my iosd mini readout to my fpv screen will show 50% or just under that. Plus the lights on the battery pack still have two bars lit up. So I can see its not at the critical level. in the assistant the critical or warning level is set to like 35% or something. So what the heck is going on? I dont want to fly if this thing is gonna trip out and start descending on 50% charge.