My camera show the batteries are dead when they're fully charged

hi,
it could be a software problem. if the camera doesn't get the battery's information this will occur the center terminal of the battery must be clean, similarly the contact inside the camera.
if it works for a little while, try to reset to default manner.

Sounds indeed like the battery is dead. You could try checking it with a volt meter. If the volt meter says it is fully charged then you have a problem with the camera instead

Make sure the battery is fully inserted and clicks in to the netbook body. Your battery may also be showing that it's charged but is actually dead. Try a new battery and see if it solves your problem.

If the recharageable battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.

You probably have a faulty battery or charger. If you know someone with the same camera try swapping batteries. If not a new battery sounds like your next move.
Good Luck

Does your camera use AA batteries, and you don't use Li AA batteries? You can see why cameras show low power warning for fully charged batteries Try Li-ion batteries then

Your battery life is finished thats why after showing the full charging its dead faster. Buy new rechargable battery , charged it fully and use it. You naver face the problem again.
Thanks.

Very often the battery is "not" at fault. The inner contacts within the battery compartment need to be cleaned. Take a cotton swab and "dampen" it with rubbing alcohol and clean those contacts. Also clean the contacts on the battery and the charger, if so equipt. This should solve your problem. Regarding the battery status, the battery icon will show as the charge depleats and so on, if you see no battery icon, than the battery is fully charged. Some cams show the fully charged icon also. Thank you, Dana

THis is really a sign of a bad battery that is always being detected fully charge but its really drian , so it will be better for you to replace that battery.....

Does it work with "no batteries" - only plugged into power source? check your usb cable by trying to power up something else.