In addition to selecting the original battery, the domestic market has emerged more than one brand of notebook external battery, and more convenient, most of these batteries with multiple DC plug can be common to different models of most brands of machine, with strong compatibility. Some products with UPS technology, the notebook also provides power protection under certain circumstances. The more important point is that these universal laptop battery price is a lot cheaper than the original battery, believe that this inexpensive battery will soon be a large area to enter the market, so that not only offer new options to the user, can promptly eliminate # / # # 183 / # chaotic situation in the repair market. Supply time, capacity, volume, and compatibility indicators from the technical point of view, this external laptop battery has a good performance, able to meet the needs of the vast majority of notebook users a second battery. Whether it is the battery life time high demand for models older difficult to buy matching battery user, or to have the various models of various brands of laptop users is, is this notebook Universal battery a good choice. The same time, it is still far lower than the original battery, 2200 mA battery market guide price of 500 yuan, the 4500 mA models only priced around $ 600. The lithium-ion battery with high energy density, high voltage, pollution-free, no memory effect, become the laptop battery choice. According to the survey of professional firms, notebook batteries currently on the market about 90 percent are 18650 cylindrical lithium battery, Asus x52f batteries its capacity is generally about 2200mAh; approximately 8% of the 103,450 square lithium battery, its capacity is generally about 1800mAh. Polymer lithium ion battery technology and cost reasons, the proportion of the laptop battery market is still very small. Popular laptop battery available on the market, batteries, mostly Japanese and Korean manufacturers such as Sanyo, Sony, 18650 battery, and its diameter is about 18mm, which greatly limits the slim design of the notebook.
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