It depends on the battery in question. If it's the specific to your camera, maybe it's time to buy a new one since this one does not seem to keep its charge. If, on the other hand, it uses rechargeable AA batteries, get yourself new batteries with higher mAh rating which means it contains a bigger charge and should last longer. Good luck!

change your battery! don't recharge until your battery is fully drained..it might not last as long the next time you use it

If your camera uses camera-specific rechargeable batteries, they may need to be replaced-but they are more expensive than rechargeable AA or AAA batteries. If your camera has an optical view finder, try turning off the screen and frame your pictures solely with the viewfinder window. If on the other hand there is no optical veiwfinder, the screen is your only VF (I am getting tired of typing viewfinder) and cant be turned off. Most cameras can auto-detect whether the flash is needed. If your camera has an auto-flash-detection, use it. If your camera doesnt have auto-detect or if it only auto-flashes if it's nearly pitch black, and you find yourself in a situation where you are unsure of whether the flash is needed, take it first without flash, and check the picture on the screen. If it does need it, then retake the shot with flash. If it's a "one shot deal"(no pun intended) play it safe and use the flash if you have any doubt if there is enough light or not. Keep in mind that playing with the zoom lens/auto focus WILL shorten the battery life. Also recording video most likely would suck batteries a lot faster than just taking pictures If your camera uses AA/AAA batteries (which I personally prefer over camera specific rechargeable batteries, because they are more widely available) rechargeable AA and AAA batteries now last longer than normal alkaline batteries (alkaline=disposable/not rechargeable/throwaway batteries) and also, of course save money. Older rechargeable batteries took a long time to charge and did not have very good runtime. If you tried them in the past and found them to be sucky, try rechargeable batteries again- I did, and I now use rechargeable batteries in ALL my battery powered devices! It took me almost 2 years to "accumulate" enough batteries for everything, but they will save you money in the long run. I believe you can get a pack of rechargeable batteries for only $10. I dont know how much chargers cost. It also may just be that your camera is just a battery hog. Not all cameras have very good battery life. I would suggest using your camera until it won't work any more- this is good for rechargeable batteries. In other words, don't immediatly swap the batteries (or plug in your camera) when your camera gives the "low battery" icon/light/beep/whatever your camera does before the batteries run out if you're at your house with extra batteries on hand. If, on the other hand, you're about to go somewhere with the camera and the batteries are low, go ahead and top them off- dont risk running out of juice while shooting!