Batteries' die faster when camera pointed at screen?

My brother insists that the digital camera's batteries die faster when shooting a TV screen or PC screen due to it emitting more radiation or ultraviolet or something, he really can't explain the exact reason but he is stalling on his position.
Is he right or wrong?

I say no, the batteries won't discarge faster.

The CCD sensor in a camera does not require any more energy to run regardless of what kind of radiation (visible light radiation, infrared raditaion, etc) it is exposed to.

Also, the LCD view screen is backlit with CCF (cold cathode flourecent) light which does not vary with the picture being displayed - the LCD just blocks some of this light to make different colors.

I would say, that would make no sense, what-so-ever. There's radiation from pretty much everything around you, a TV screen would emit some sort of x-ray radiation but the glass is shielded to prevent this. It may be true, but not because of radiation emission, run some tests!

its possible... although not certian. it might take more energy for the photo sensor to run with such a high input. same effect if you point it at the sun and run the view screen. cant really say it would be a huge effect though. much bigger effects on battery life are holding autofocus and using the view screen instead of the view finder. hope this helps!

If your TV's radiation is that strong, then I'd be more worried about you than your camera. Even if it did (though it makes no sense to me) unless you were taking monitor or tv photos for hours, the loss would be insignificant.

that doesn't make sense. it depends on the battery's quality, not on what it's trying to shoot.