Originally posted by dkdivot28 Batteries fully charged
Change batteries same problem
The question was not whether the battery was charged, but how old is the battery. Lithium cells have a limited lifetime regardless of how carefully they are used. With age they lose the ability to take a full charge and also to deliver full voltage.
I agree that it is likely that your camera has sustained some damage that is causing the shutter issue, though bad power should probably be ruled out before tossing the camera.
Steve