The battery I bought a replacement battery for my Canon PowerShot G12. To photograph 350 to 400 pictures on a single charge is not a problem (of course depending on the number of "flashed" images). I made the mistake to me before to buy a "no name" battery pack as a replacement (who has also already tasted about 15) who has never reached this number of images, and after a few charges, the capacity is no longer achieved in such new state. In future, I will always buy at least in the area of battery power, the original; even if it's only once more expensive, you can save but ultimately, as the quality is better. Canon NB-7L Li-Ion battery