2010年3月26日星期五

How to choose a charger

Many people when buying rechargeable batteries, a look at the capacity, or look the brand. However, to know that buying a good performance of the rechargeable Sony vgp-bps8 battery is also a great school of learning.dell xps m1330 battery


Batteries can be divided into two categories, one category is “one cell”, and the other is “secondary battery.” “One cell” As the name suggests is the use of no value once the battery, “secondary vgp-bps9” simply means that rechargeable batteries, can charge for further use.bps10


Lithium batteries can be understood as digital products, special batteries, its shape according to the design of digital products can be arbitrarily changed, lithium batteries almost no memory effect, and use a long time. However, lithium batteries ( vgp-bps9/b) are expensive, and between the different specifications of the lithium batteries can not be generic.laptopbatterymag


In the rechargeable dell laptop battery batteries are printed on the surface of a similar mark, indicating this product is what type of battery. NI-MH says that nickel-metal hydride batteries, is actually very simple, NI is the chemical letters Nickel, NH, said hydrogen. By the same token NI-Cd is expressed as a nickel-cadmium batteries.dell inspiron 1525 battery


Battery rated capacity refers to a certain discharge conditions, the hp laptop battery discharge to the release of electricity cut-off voltage. No. 7 currently on the market capacity of the battery 400mAh-900 mAh mostly between the 5 batteries from 1000 mAh-2500 mAh range. Of course, in a sense, the capacity is of course the bigger the better, because of large capacity means longer battery life.


It is also noteworthy that, among the different capacities of batteries do not mix. For example, three 2300 mAh of the Dell inspiron 1526 battery batteries 1300 mAh battery, which emit an effective current of only 1300 mAh, from the physics can be very simple to understand this point.


The rechargeable Inspiron 640m battery are generally marked on the standard charge time and quick charge time, charging the speed with charger related.


Slow charge generally use constant current charging mode, and the battery is full and automatically converted to trickle charge state. Has the advantage of slow charge circuit design is simple and easy to implement, prices are also lower; As a result of low current constant current charging, effectively reducing the acer laptopbattery charging process in the heat, to extend the battery life is very good. Drawback is the charging time is too long, especially in the case of large quantity of batteries a bit powerless.


Fast charge is generally using a large pulse current charging Compaq laptopbattery , but because of high current battery charging process will generate polarized responses, leading to the rapid increase in battery temperature, full power on after resume a likely explosion and combustion, so fast charge also uses a special chip to control the charging process of pa3399u-2brs, automatically stop charging once filled so that the whole process of charging has become safe and efficient.


In the end is a standard charger or optional fast charger that can be purchased according to the needs of users. Here to remind consumers to purchase brand-name products charger must be, and if I get quick charger fot yoyr vgp-bps9a/b, be sure to understand whether the automatic power-off function.

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