Laptops use rechargeable batteries, desktop computers do not have a big advantage, he can ensure that the user is assured in any case. Earliest use of laptop battery is nickel-cadmium batteries, but the disadvantage is that it has a memory effect, need to put electricity and can charge, causing a lot of inconvenience, then gradually replaced by the nickel-metal hydride battery, it does not have the memory effect, and the capacity increased . Is now widely used in the lithium-ion Asus K52F Battery, no memory effect, the greater the capacitance, the price of your points, but a long time.
Almost all the second-hand laptop user to replace the battery when the batteries very puzzled with the battery, but it is a completely different concept. A battery of a number of small units and batteries after the series, combined into battery.
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