Regular alkaline batteries are not recommended for that camera.
I assume that you are using rechargable NiMH batteries.
It is possible that one of your batteries is defective. It happens.
It is possible that you have a defective memory card.
I have heard of a bad card draining the battery.
That is the extent of what the average person can do to fix a digital camera.
I have the concord 3340z, it works with AA battery. It is so ridiculous that I just play with the zoom once or twice while the battery are full,and it just died right away. Obviously, there is something wrong, is anybody that can help me with that???