Got these batteries for vacation, the original is starting to die out on my Canon ELPH S400. Shipping was not as fast as I would have liked but good thing I ordered early. One of the batteries actually did not last very long after the initial charge (only able to take about 10 pics). I charged both fully. The other was fine. But after charging the "bad" one again it seems to be working fine. The fit is not exactly the same as the original from Canon, it's a little more snug. Worked fine on my vacation. Overall, for the price it's a good deal.