The Ymiko Automatic Cat Feeder can be used for more than a week, depending on the feeding settings.  When filled to the top and programmed for three meals per day at level 5, it can typically last a little over a week.  However, please note that the exact duration may vary based on factors such as portion sizes and meal frequency.  It's important to adjust the settings to meet your cat's specific needs and ensure an adequate food supply throughout the desired period.