Like many other electronic devices, digital cameras work with batteries and the life of these batteries limits the number of pictures you can take before changing or recharging them. There are situations where you are in a long shooting session and you can't change or recharge the batteries (e.g. when you go on a trip). This is why it would be useful to know some power saving tips that can prolong the life of your batteries. A camera has a lot of features and options. Usually the most advanced features are also the highest energy consumers. Learning how to use them with caution can help you save up a lot of power. Here are some of these features:

The LCD screen. Every digital camera has a small LCD screen where you can view your photos. You can also use it to shoot photos instead of using the viewfinder. This digital screen is the biggest energy consumer. This is why all cameras turn it off when you are not using it for a while. In order to save up some energy, you could use the screen as little as possible. Turn it off whenever you can use the viewfinder. There will still be some situations when you must use the LCD screen, like when taking an overhead photo. You should also reduce photo viewing to the limit because it wastes a lot of energy. Only use it when you really need to see how the picture turned out like in order to plan your next photo. For example, you might need to see how the composition was or if the lighting was right.

Mechanical motors. Motors are used to move the components of the camera, like the lens when zooming or focusing. These are also big energy consumers when moving. To reduce energy consumption, limit their moving time as much as you can. For example, you cannot avoid focusing, but you can stop doing it when it is not absolutely necessary. When photographing moving objects, such as at a sports event, the focus is used for the whole time until you are ready to shoot. It is good to know that after you press the button half way down, the camera will start to focus. Reduce that time at the minimum to save up energy.

The flash. The camera's flash unit is another energy eater. There are many situations when you can't take a photo without flash, but many people take all photos this way because they leave the flash on automatic mode. Choose manual mode if you can and only use the flash when it is necessary.

The shutter button. Each time you press this button only half way down and do not take a photo, the camera still uses a lot of energy on a series of processes aimed to prepare it for shooting. It wakes the electronic components, focuses the lens and gets the flash unit ready in case you need it.

One day a technological breakthrough may prolong the life of your battery at such an extent that power will no longer be an issue. However, until then, keeping in mind a few energy savings methods will help you never run out of power when you need it.