I was not able to fly for a couple of months and I left the battery in the p2 for that time. When I tried to use it, I was getting an error beep but then it stopped. I flew it a little and It landed itself at about 50%. I tried to charge it, but before it finished charging (2 bars), it just stopped charging. The charger is fine so I guess the battery is shot. (10 -20 cycles) Question is: Is it likely that leaving the battery in the p2 either caused or contributed to its failure?