Laptop battery structure is not complicated, the simple answer is that the batteries with protection circuit, the battery Toshiba PA3107U-1BRS Battery is the core of batteries in series or in parallel, which we usually see on batteries with the general cylindrical shape similar to the fifth battery just inside the stored energy of the chemical solution different manufacturers have designed over-current, over voltage, over charge, over discharge, temperature, etc. to protect.
Cell structure even though a simple, but really qualified to make a battery is not that simple. A product must first select batteries, bad batteries are often internal resistance, voltage, charge and discharge targets difficult to meet the demands, to do out of the product is mixed. At present regular multi-purpose manufacturer Sanyo, Samsung, Toshiba, LG, BAK and other brands of batteries. After storage batteries must be tested for their targets and indicators within the 2% difference in the batteries can be paired in series or parallel circuit composed of, otherwise, a target of batteries and other batteries because of quite different in the battery charge-discharge process will be expressed as battery charge or discharge have not yet succeeded, and this individual has been over-charging batteries, or discharge, resulting in the battery pack does not work, the difference in the long term the larger batteries, or over-charging After discharge, leakage or even an explosion that may arise. Manufacturers of batteries for testing and matching precision instrument and equipment, not the general computer Laptop Battery to rely on the city so-called professional maintenance staff will be able to complete the multimeter, and they rely on multimeter can be achieved at best is to control the batteries internal resistance within the required accuracy, as Actual storage capacity batteries, life, charge and discharge the effective time, no professional equipment can not detect a real sense can not be matching, so-called maintenance is also a form, the battery storage capacity has not increased maintenance will not .
Laptop battery life is generally 300 times the total charge and discharge, a year and a half or so to replace a new battery, original laptop batteries are not cheap, easily a thousand, some friends in order not to spend so much money to buy replacement laptop battery while the thought of batteries, which should not be it? This is what security risk it?
At this point, I visited the electronics market, engaging in business transactions, both second-hand laptop, said to the writer that can provide this is what they call "changing core" of the maintenance service. In the author in the hands of IBM 600E original equipment batteries, for example, "for the core" costs about 100-300 yuan, and its process is very simple, just have a basic welding equipment and technology can be completed. In the laptop battery maintenance of the site, the reporter saw repair personnel forced open the original battery, will the old batteries out, Toshiba PA2487U Battery and then as is in accordance with the new batteries into the spot in turn connected to come, and the entire process did not exceed 30 minutes. "In fact, the majority of laptop batteries are not rechargeable batteries as a result of aging, as long as the battery charge and discharge control circuit board not bad, this maintenance of nearly 100% success rate." Merchant says,
Maintenance business also revealed that the current batteries in circulation are from the South to buy large quantities. Battery heart repairs until early this year, appeared in large numbers in the local electronics market, but also very popular. "In the 'blue fast', where the block to buy a new battery at least 1,000 yuan more than the price that many customers are cheaper to come to this for Ben Zhao."
I interviewed a number of IBM Sony PCG-Z505 battery products is responsible for after-sales service "Blue Express" the staff, for this "change the core" behavior they both said that did not know, nor did conduct a customer complaint. However, a staff member confirmed that the purchase of a new 600E battery needs to spend about 2,400 yuan, it can be said is equivalent to half the price of a home notebook.
For the difference between the price disparity, "Blue Express" the head of the Propaganda Department, said, IBM has its own global pricing strategy, the company did not modify the permissions, but whether they would opt to repair the battery is the client's freedom. At the same time because of environmental considerations, IBM customers will be turned over to the scrap batteries, commissioned by professional companies to focus on the destruction, the process takes a lot of money.
In view of "cheap convenience" of the laptop battery for core process, professionals advise that this "change core" cell 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 Sony PCG-V505 battery 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 really unwise to be too uneconomical, not as good as OEM notebook computer batteries to buy it. In fact, many claimed to be original battery is OEM, as the industry brother DELL, there are parts which are not OEM's? OEM notebook batteries batteries are imported genuine manufacturers, performance, and original little difference, because it is produced domestically (mainly in the south a few makers), low-cost and no import tax to pay so much, so Only one-third of the price of imports or less. In addition to the battery-for-core insecurity, the provision of core services for businesses and maintenance of the level of uneven quality, in and chat in a business that, some black-hearted battery maintenance providers, in order to earn huge profits, take the quality of the best times cells act as a good battery, and the worse the battery inside the control chip removed, only one wire connected to, or have already been scrapped on the circuit board inside the battery charge a few. Said that a serious point, so that the battery Sony PCG-R505 battery can not think of are all very hard.
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