Rechargeable batteries are used in a variety of devices.There are several different types of batteries that use different technologiesfor different types of devices. Three main types ofrechargeable batteries are 9Volt, D, or AA and also AAA. But what to these letters mean and why are theydifferent?
A 9Volt battery is a rectangular battery used in smallconsumer electronics. Rectangular is a shape used for most batteries which are 4volt or higher, up to 12 volt. All batteries are made of cells, but the cells ina 9 volt are connected in a series combination which makes the voltage rating ofthe battery the sum of the voltage of the cells.
D is another type of available rechargeable battery. It iscylindrical and 1.5Volt. D batteries are referred to as batteries, even thoughthey are really just a D cell. As opposed to the 9 volt which is several cellsconnected, the D cell is simply one type of cell. D cells are used for a varietyof electronic devices.
AA or AAA batteries are typically composed of alkaline.However, NiCd and NiMH are now available for rechargeable types and have highercapacity than alkaline. AA and AAA are used in handheld devices like remotes,digital cameras, model cars. AA and AAA hold the same amount of power, but AAhas more lifetime, which is why it is larger.
All rechargeable batteries are referred to as secondarycells because they can be charged after they are drained. 9 volt, D, AA and AAAare all dry cell type batteries because they do not contain the wet lead acid asin the oldest type of rechargeable batteries. Buying quality batteries andcharging them properly is the best way to get the most out of your money.
About the Author
Angela Oliver is an author for Battery Web, the Worldwide Web's Leading Provider of all Types of Batteries, Battery Chargers and Accessories. Visit the site for a great selection of Rechargeable Batteries.
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