Laptop battery structure is not complicated, the simple answer is that the batteries with protection circuit, the battery is at the heart of batteries in series or parallel, where one usually sees on the batteries with the generally cylindrical similar to the fifth battery just inside the stored energy of the chemical solution from different manufacturers have designed more current, over voltage, over charge, over discharge, temperature, etc. to protect.
Cellular structure, even if a simple, but really qualified to make a battery is not so simple. A product must first select the batteries, the batteries are often poor internal resistance, voltage, charge and discharge targets difficult to meet demand, to do outside of the product is mixed. Currently several regular-purpose manufacturers Sanyo, Samsung, Toshiba, LG, Bak and other brands of batteries. After storage piles should be tested for their targets and indicators in the 2% difference in the batteries can be combined in series or parallel circuit composed of, if not a target of batteries and other batteries because of very different in the IBM ThinkPad R51 battery charge-discharge process will be expressed in the form of charging or discharging the battery have not yet succeeded, and that person was on battery charge or discharge, resulting in the battery does not work The difference in the long term, larger batteries, or over-charging after discharge, leakage or even an explosion that may arise. Manufacturers of battery test and matching precision instruments and equipment, the computer generally rely on the city known as the professional maintenance staff will be able to complete the multimeter, and they rely on a multimeter can be achieved at best is to check the battery internal resistance within the accuracy required, as actual battery storage, life, load and discharge the effective time, no equipment professional may not detect a real sense can not be matched, said maintenance is also a form, the storage battery maintenance has not increased is not.
Laptop battery life is typically 300 times the total charge and discharge, and half a year or two to replace a new battery, laptop batteries home are not cheap, easy miles, a few friends to spend no so much money to buy laptop Dell Latitude D800 battery replacement while the thought of batteries, which should not be? This security risk it?
At this point, I visited the electronics market, engage in commercial transactions, both second-hand phones, “said the writer who can provide what they call” change of base” maintenance department. In the author in the hands of IBM 600E batteries original equipment, for example, “to the” core costs about 100-300 yuan, and its process is very simple, you come from a welding equipment and technology base can be completed. In keeping laptop battery site, the reporter saw the repair personnel forced the original battery, will the old batteries out, then it is in compliance with the new batteries in place in turn connected to future and the whole process should not exceed 30 minutes. “In fact, most laptop batteries are not rechargeable batteries as a result of aging, as the battery and the control board’s discharge circuit is not evil, this servicing almost 100% Success. “Merchant said:
Maintenance Activity has also revealed that the batteries are currently in circulation in developing countries to purchase large quantities. Repairs inside the hp Pavilion dv4 battery until earlier this year, appeared in large numbers on the local market for electronics, but also very popular. “In the ‘Fast blue’, where the block to buy a new battery at least 1,000 yuan more than the price that many customers are less expensive to come to this for Ben Zhao. ”
I interviewed a number of IBM products is responsible for after-sales service “Blue Express” staff to “change the basic behavior that they have both said that did not know, has not proceed with a complaint from a customer. However, a staff member confirmed that the purchase of a new 600E battery needs to spend about 2,400 yuan, one can say is equivalent to half the price of a mobile home.
For the difference between the price gap, “Blue Express” the head of the Propaganda Department, said, IBM has its own pricing strategy worldwide, the company does not change the permissions, but if you opt to repair the Battery is the freedom of the client. At the same time due to environmental considerations, IBM customers will be given to scrap batteries, commanded by professional companies to focus on destruction, the process takes a lot of money.
Given the “cheap appeasement” of the laptop battery for the central process, professionals advise that the essence of “change” cell there is a security risk.
“Blue Express” the technical staff, told Reporters Without authorization “for the core,” there is a big security risk, some rechargeable batteries without detection of short-circuit even after the bursting phenomenon, ranging from damage to host, while in the explosion, and even life threatening for the user. It’s really unwise to be too expensive, not as good as the batteries of laptop OEM buy. In Indeed, many claimed to be original battery is OEM like Dell’s brother, there are parts that are not OEM? Batteries for laptops OEM manufacturers of batteries are imported actual performance and few differences of origin because it is produced locally (mainly in the south, some manufacturers), low cost and no import tax to pay so much, so only one third the price of imports or less. In addition to the sony VGP-BPS5 battery purposes of basic insecurity, the provision of basic services for businesses and maintaining the level of uneven quality, inside and chat in a company, some Black Hearted providers battery maintenance to earn huge profits, taking the quality of the best moments cells act as a good battery, and worse, the battery inside the controller chip removed, but only one wire connected to, or have already been demolished on the circuit inside the battery some. Tell a serious argument, so that the battery can not think are all very hard.