The AZ252 is quoted to be able to take approximately 280 photos with brand new, fully charged AA Alkaline batteries.
If using AA NiMH Rechargeable AA batteries, the AZ252 is rated to take approximately 500 photos.
Both of these estimates depend on how often you power the AZ252 on/off, zoom in/out and toggle between settings and videos. Exact amount of photos will depend on individual use and case.