That's been only functioning CRV3 battery with my Kodak Z812. Lasts a long time by, not only photos but also several hours movie. So far I could only use CRV3 Photo batteries because all Batteries failed. Thanks to the manufacturer. There are just still quality. Unfortunately, however, only 1100mAh. That's why I want to try it with Klic8000 batteries now times. They have up to 1800mAh. Let's see if that still Longer persevere.