Your camera requires four AA size batteries.There are several factors that contribute to battery life:
NiMH: This is the best solution for enjoyment and cost savings. NiMH batteries typically last longer per charge than the average alkaline batteries. NiMH batteries are rechargeable batteries, so they can be used several times and thereby reduce the expense of continually purchasing new batteries. NiMH batteries are typically sold with a power adapter for charging. The life of these batteries can often be determined by the mAh rating, the higher the mAh rating on the battery, the longer that they will last. NiMH batteries do not have the memory effect associated with NiCd batteries, which means that these batteries can be recharged at any time and at your convenience (you do not have to wait for the batteries to completely drain between charges).
Lithium: Energizer has introduced a new series of Lithium batteries that provide optimum performance and long life for disposable AA size batteries. Laboratory studies shows that Lithium batteries last more than three times as long as standard Alkaline batteries. This means many more hours of fun and satisfaction with your digital camera. These lithium batteries are not rechargeable, they are long lasting.
Alkaline: Using the LCD display, downloading images, playback, zoom and flash all require some battery power to operate and may decrease the number of shots per set of batteries. Performance may also vary based on the Alkaline batteries selected. To significantly increase battery life, be sure to turn off the LCD when it is not in use. The LCD consumes the most amount of battery power. The benefit of being able to use alkaline batteries is that you can find then almost anywhere if needed.
Manganese: If you are using manganese batteries, the typical battery life will be about 2 - 5 shots. Then the camera will indicate that battery power is low and may shut-down. To avoid this experience, use either Alkaline or NiMH batteries.
Optimum Solution: Use a set of NiMH batteries for longer use and to reduce the expense of continually buying new batteries. It may also be a good idea to keep a spare set of NiMH batteries for other devices that require AA size batteries on a regular basis. Use AA Alkaline batteries when the NiMH batteries need to be recharged and you want to continue enjoying the use of your camera.