ORIGINAL: wings
Also batteries tend to die when you don't use them for a while. If its been over a year since you used that battery it may be toast, especially if its Nicd
Who in the world ever told you that? I had a plane and radio put up in a garage for 5 years without touching it and the batteries in it were still good after charging them. Receiver and transmitter batteries.
If your statement is true then all the batteries in a radio outfit that have sat around in a hobby shop for over a year could be toast then!