Leaving aside the ever power thirsty LCD screens and flashes, the digital cameras themselves exhaust batteries much faster than film cameras, due to their state of the art electronic designs and intricate circuitry. Many digital cameras run from AA cells, around 4, and can even drain a set of alkaline cells in less than 1 hour of working! For example, the Kodak DC120 draws about 210mA during start or switch ON, but progresses to around 1.3A with the association of the LCD fully working and can go ahead to about 2.1A while picture taking and after it too.
With all these nightmares regarding the batteries of the digital cameras, it is worthwhile to analyze and reveal some of the available batteries for the digital cameras in an effort to explore area of power consumption in this fantastic device. Coming to first one of these, like its great name suggests, it is the Li-ion (Lithium Ion). It is one of the latest cell types available to digital camera users. This has many advantages to its credit. It is light in weight and currently available for many commercial uses and thus being so the Li-ion (Lithium Ion) battery type is becoming quite popular. This has an added advantage of being able to endow with more power than any of the other main cell types available. It is also free from the problems of memory effect, hat some battery types do have, and maintenance is least in this type of battery. These are but real goodies about this Li-ion (Lithium Ion) battery. Yet it has one major disadvantage, that is, the price is usually significantly higher than conventional batteries, due to its sophisticated design and technology.
Coming to the next one in the line, the NiMH (Nickel Metal Hydride). This is a battery that is perhaps the most frequently under use for not only digital cameras, but also for other sophisticated devices like laptop computers! This has the advantage of being cheap in price due to the fact that it incurs cheap manufacturing costs, and thus a choice for many users! But this does have the problems of memory effect, and much more maintenance and care is required while handling this kind of battery.
Another such battery is the NiCAD (Nickel Cadmium) Battery. This is perhaps belonging to one of the older cell types generally available for older laptops and electronic devices. These batteries or cells have an aptitude for handling high power loads, and therefore is more frequently found in handy power tools and devices that require more amounts power to work efficiently and perfectly. Yet again, these batteries too have the problems of memory effect, and much more maintenance and care is required while handling this kind of battery.
Apart from the different batteries themselves, the selection should be based upon the charging techniques and the different charges available for all these digital camera batteries. Latest batteries come handy with charging free techniques too! So care needs to be taken in this area also, depending upon the requirements of the user.