Thank you very very much!
I was thinking I'd have to get it repaired!

I'll try different batterys and if the same thing happens then I get it check out.

Thanks again!!!

1.5V alkaline - LR6 MN1500 AA duracell plus
I litrally bought them on saturday morning and used them straight away. 2 minutes later they died and then my camera turned off and then I was able to take pictures again. (this happened for about 3 hours)

A pentax K-M and 4 AA batterys - duracell

I have no idea whats wrong with it

I put in new batterys on saturday and as soon as I put them in my camera said I've got no battery, then I turned it off and turned it back on and I had half battery. So i carryed on taking pictures. About 5 minutes later it said "battery deplated" and turned itself off, less than a minute after that I was able to turn it on again and take 2 more pictures before it turned off again. This happened all through the time I was using my Pentax on saturday and it was highly annoying.

Any ideas about what it might be? Or where do you think I should take it to get it looked at/repaired?