Rechargeable batteries for Samsung Digital Camera?

Hi :) I have A Samsung S730 digital camera and need to find some good rechargable batteries to use in the camera. I recently purchased some sony rechargable batteries and set (Sony Cycle Energy Ni-MH Battery Charger) but after charging them for the required about of time, the battery life had gone about 15 minutes into use (I was round a safari park). Are there any rechargeable battery sets that anyone has used for their digital and found them to be great.

Thanks in advance...
Also thought i may add that the Charger and battery set were an 2300mAh.
Actually im not sure of the above statement...Sorry :)

Duracell has the most lasting energy in a camera then all the rechargeables cause It has 2650 mAh and the second one wold be energizer 2500mAh still duracell would be better.

im not a pro, but im sure anyone at a store like best buy, or future shop could tell you... Good Luck =D

I use Durcell NiMH (2650 mAh) rechargeable AA batteries and they work great in my camera.