Laptop battery life is generally 300-500 times completely charge and discharge

Laptop battery life is generally 300-500 times completely charge and discharge, one and a half or so to replace a new battery, original laptop batteries expensive, up to thousands, some friends do not want to spend so much money to buy laptop battery and thought the replacement of batteries, what security risks does this? I visited the electronic market, transactions in second-hand laptop that businesses are to the author, can offer this is what they call "for the core" of maintenance services. The author in the hands of IBM 600E original battery, for example, "for the core" costs about 100 to 300 yuan, the process is very simple, just have a basic welding equipment and technology to complete. Laptop battery maintenance of the site, the reporter saw repair personnel forced open the original battery, will the old batteries out, then follow as is the new batteries will come into the spot welding in order to succeed, the whole process is not more than 30 minutes. "In fact, most of notebook batteries are not rechargeable batteries caused by aging as long as the laptop battery charge and discharge control circuit board is not bad, that the maintenance of nearly 100% success rate." Maintenance business also revealed that the current circulation batteries are purchased in large quantities from the South. Battery for heart repairs earlier this year only in large quantities in local electronics market, but also popular. "In the 'blue fast', where the price of buying new batteries at least 1,000 yuan or more, many customers are cheaper to come to this and ran the." I interviewed a number of IBM products, service charge "Blue Express" the staff, for this "for the core" behavior, said they were not aware, there is no customer for this complaint. But an employee confirmed the purchase of the new 600E battery needs to spend about 2,400 yuan, can be said to be equivalent to half the price of a home notebook. The significant differences between the prices, "Blue Express" the propaganda department official said, IBM has its own global pricing strategy, the company did not modify the permissions, and whether the choice to repair the battery is the customer's freedom. At the same time because of environmental considerations, IBM customers will be turned over to the used batteries, commissioned a professional company focused on the destruction, the process takes a lot of money. View of the "cheap and convenient," the laptop battery for the core process, professionals advise that "for the core" battery there is a certain security risk. "Blue Express" the technical staff, told reporters without permission "for the core," there is a big security risk, some rechargeable batteries without the detection of short-circuit even after the burst phenomenon, ranging from damage to the host, while in the explosion and even life-threatening to the user. This is too wise to be too uneconomical, not as good as OEM notebook batteries to buy it. In fact, many of the original battery is claimed to be OEM, as the industry brother DELL, which parts are not OEM's? OEM laptop batteries battery manufacturers are genuine imports, performance, and original no difference, as it is produced domestically (mainly in the South several manufacturers), low cost and no import tax to pay so much, so Only one-third of the price of imports or less. Battery for the core in addition to insecurity, to provide for the core level of service and repair businesses uneven quality, and a business chat in the know, some black heart of the battery service provider, in order to earn profits, the quality of the best times to take battery as the battery, and what is more control chip inside the battery removed, only one wire connected to, or to have been scrapped on the circuit board inside the battery charge and number. That's a serious point, the battery can not think of this question is very difficult.