I bought it last summer and havent shot it in about 7months?? my friends told me they were going to camp out and play all night so i found my gun (kept in a dry storage space.. my closet. the battery wasnt in it all that time either) so i charged the battery for the amount of time needed. I got there took out my gun pluged the battery in and nothing i pull the trigger and its like no battery at all is in the gun. I need to know if i can fix it or just get a new one ASAP. I know the battery is good cause i let my friend use my battery that i used in the R74 in his M4 and it shot fine. Any ideas??