USB Phone World Posting Page
Thursday, December 22, 2011
With the decrease of the price of laptop computer and with the emergence of mobile PC, many people are beginning to push themselves to try the products of mobile OPC. When, nevertheless, we choose to purchase a laptop computer, we tend to pay too much attention to products’ price, weight, appearance, and configurations, and little attention to what kind of batteries our laptop computers can use. As a matter of fact, the high-low overall functions of laptops, otherwise referred to as mobile instruments, have a lot to do with batteries’ good and bad qualities, which makes batteries’ importance equal to CPU, main board, hard disk, and etc. Users must therefore have a good knowledge of laptop batteries, so as to be good at choosing a suitable battery from all kinds of batteries.
Generally speaking, there are three types of laptop batteries suitable for most laptop computers in the current market. They are Ni-Cd battery, Ni-MH battery, and Li-ion battery. Of course these three types of laptop batteries differ from each other in actual application. Because there are many parallels between laptop batteries and mobile batteries which we often use in our daily life, the earliest version of laptops and mobile phones both employed Ni-Cd battery.
Given the technologies of batteries were not advanced enough in those days, Ni-Cd batteries had a lot of shortcomings that bothered the minds of many people. For example, their volume was rather big, their weight was rather heavy, their capacity was rather small, their service life was very short, they had memory effect, and the like. And herewith Ni-Cd batteries have by far been eliminated, which causes many laptops to turn down the application of Li-Cd batteries, so there is no point in mentioning the importance of Li-Cd batteries. The batteries of today mainly have two kinds: Li-ion batteries and Ni-MH batteries. Li-ion batteries are characterized by small volume, light weight, large capacity, low memory effect, short charging time and so on, which certainly wins the preference of many users.
Ni-MH batteries are the most environmental batteries at present. Countries that attach great importance to environmental protection all encourage people to use Ni-MH batteries, for they are recycled and can be reused, and relatively speaking, they do the least harm to the environment. Compared, however, to Li-ion batteries, Ni-MH batteries have some shortcomings. For example, they run to long charging time, heavy weight, small capacity, strong memory effect, and etc. Although the memory effect of Ni-MH batteries is not as big as Ni-Cd batteries, it is highly necessary for users to release the electricity from Ni-MH batteries. Users have used up all the electricity inside Ni-MH batteries before recharging them. The situation is as much the same for laptop computers as for mobile phones.
It is exceedingly imperative, above all, for users to develop a way of identifying each type of battery with the other, since different kinds of batteries differ from each other in actual performance and working properties. Users ought to keep trying new batteries and get to know more about their characteristics essential to an amelioration of the role they play in laptop computers. Do the best you can to favor your laptop with the most suitable battery that will prove to be of great service to the protraction of the service life both of the laptop and the battery.
by: USB Phone World