Eneloop batteries

I bought 4 pieces of Eneloop and use it on my Canon S3. I made a record to check how many shots I could make with my Canon. I snapped around 220 shots. With Energizer 2500mAh Ni-MH, I could snap only around 160 shots, although some reviews said it can snap up to 300 photos with regular alkaline batteries. But I must say my numbers were not really accurate because sometimes I previewed my photos more on the LCD, sometimes I locked on the target longer, sometimes played with the zoom more ... etc. But overall, Eneloop performed better that Energizer. I was surprised that none of the camera shops in Kuala Lumpur that I went know anything about Eneloop. Some gave me cynical smiles when I told them the benefit of Eneloop.