I bought these batteries with our digital camera in mind. These were new out on the market in October of 2007 and I am so imprssed with them! The package said that they were all ready to use. I thought in the back of my mind "yeah what they going to last 4 hours!" I have bought several items that have not lived up to what the package said they would. So... I decided that I would ask the sales associte about them. She told me that they have been only out for 2 days and are suppose to be better than Ever-Ready and the other leading brands. The package contained 4 AA batteries and an charger for them. I decided that I would give them a try. I have to say that I am glad that I did. We get over the 565 pictures that the package says you can get before you have to recharge them. Yes, they were ready to use and they lasted 2 months before I had to recharge them. Even using the video recorder feature on my camera it still lasted that long. The only down fall to these batteries is that I have not seen them in anyother size and I still to this day can not find just the batteries in the package without the charger. So, if I want to by more batteries for something else I have to by the package and get the charger too. But, I still am very pleased with my find on these battereis.