Battery for Digital Camera
Digital Camera Battery Charger

Digital cameras are electronic devices so they require a power source of some kind. The most suitable way to power your camera is with batteries. Although most digital camera's can be connected directly to an AC outlet, this is unrealistic for anything but studio use.

AA Batteries

The majority of digital cameras use AA type batteries which are needed to power the flash and LCD display. Leaving the LCD display on more than necessary is a surefire way to drain your batteries, and if you don't possess a spare set, that once in a lifetime photograph could be lost. AA type batteries are available almost anywhere in the world and are comparatively cheap. Using non rechargeable batteries is very uneconomical and it is far better to have several sets of rechargeable batteries on hand.

NiMH Batteries

Digital cameras tend to use up battery power at an alarming rate which means that they require batteries that have a high energy level over their energy cycle. That basically means the batteries should maintain an energy output which is constant no matter if the battery is fully charged or nearing the point that it will require a recharge.
The best type of rechargeable batteries for digital cameras is NiMH (Nickel-Metal Hydride). These comparatively low-cost batteries will keep your camera running longer than any other standard type of battery.

Lithium-Ion Batteries

Another type of battery used in some digital cameras is lithium-ion. Although lithium-ion batteries tend to cost more initially they also have the advantage of holding their charge for almost twice as long. They will also keep their charge whilst in storage whereas NiMH batteries will loss their charge if left in storage for any length of time. Lithium-Ion batteries are also more predictable when it comes to power drain and it simple to gauge how much power is left.

One type of battery that you should avoid using in a digital camera are Alkaline batteries unless you are desperate and nothing else is available. Standard or rechargeable alkaline batteries will have their power used up after taking maybe two or three photographs!

As a rule of thumb, a set of fully charged NiMH batteries should give you around 100 shots if you are careful with power consumption. This figure will be reduced if you use the flash a lot, leave the monitor on between shots, and do a lot of zooming and focusing.

Digital Camera Battery Charger

Battery chargers come in a variety of models and you should always take care to get one that is rated for the type of batteries you are using for your digital camera. Some chargers are able to charge both NiMH and NiCad batteries but as the NiMH battery has nearly twice the capacity of a NiCad both need different charging rates. If this type of charger is not set up correctly for the type of battery that you are charging, damage can occur to the batteries by overcharging them.

If the camera is supplied with Lithium-ion batteries, the charger is normally provided by the manufacturer, either as part of the digital camera package or as an additional accessory.

Batteries that are used in the camera should be charged together as a set. For example, if your digital camera uses four AA type batteries then the charger should be able to charge that number together. Conversely, if the camera uses two or three batteries, the charger should be able to charge that quantity at one time.

Not all chargers are equal and some of the cheaper battery chargers keep on charging the batteries for a fixed length of time. which ultimately can be bad for the batteries because they could easily become overcharged. It is always preferable to have a battery charger that is micro processor controlled. With this facility, the charger will automatically switch off once the batteries have reached their maximum charge. Consequently, there is little chance that the batteries will become overcharged.