This type of problem has been reported occasionally on several brand of cameras.
The most common cause is that one battery appears to be too short.
This is caused because the spring at the bottom of the battery compartment has lost some of its tension.
Look closely at the batteries and see if one of them appears to be not long enough to touch the battery compartment lid (when it is closed).
Sometimes it is possible to stretch the spring to make it stand taller in the battery compartment.
Hi-- My C-500 digi camera has recently developed the following strange
fault. When turned on the lights blink and camera bleeps. A message then
appears "Batteries are low". Now this is the strange part because the
batteries were fully charged and checked on a meter. I also tried new
batteries but had the same result. This fault does not occur at every switch
on but it does occur more often than not.
I would welcome your advice on what might be the cause and the cure for this.