flyzone micro cub battery problem
I have a flyzone micro cub, when I got it I purchased two eflight 3.7v 150mAh batteries with it as well. One the way home from the shop, I charged the batteries, and they all worked when I went to the field. I had not used it for a few weeks, (it got to windy) the last few days I have tried to use it, I am only getting maybe 30 second flights out of a battery. I have new batteries in the charger, I wait until the green light goes out, but all I get is a very short flight. The stock battery does the same thing. Any suggestions. Nothing has changed with the plane, no crashes or anything.