I bought several years ago for my Ixus 50 a no-name battery as second battery. At the beginning of the performance of this no-name product was ok, but after about 1 year, the performance was just still miserable. And since my original Cannon battery has now given up the ghost after about 4 years, I had to decide whether I decide to go back for a no-name battery, or get me the original. And by purchasing the original batteries I have definitely made the right decision. The battery has a performance that is expected of him and in the long term, the more expensive price will pay off in any case. I will decide in the future probably always for the original.