BCD Semiconductor is an analog signal integrated circuits in the Greater China manufacturers (IDM), engaged in power management IC product design R & D and manufacturing. Unlike the rest of the market Fabless design firms, BCD Semiconductor has a 6-inch wafer fabs.(Click here to buy Lenovo ThinkPad i1250 battery .)

(Including Bipolar, CMOS, BiCMOS, and BCDMOS production process), can take advantage of product design and integration of advanced technology to optimize product performance and cost in order to provide a cost-effective application solutions.(Click here to buy Lenovo ThinkPad i1241 battery .)

In fact BCD Semiconductor’s focus is on low-cost, high efficiency AC / DC off-line power adapter / charger controller chip, the company in 2006 developed the first generation of primary-side controller AP370x series is the first launch of its kind on the market one of the products. (Click here to buy Lenovo ThinkPad i1230 battery .)

According to reports, AP370x using the original edge control and output cable compensation proprietary technology, built-in temperature compensation and transformer primary side inductance compensation, you can save optocoupler and secondary case of feedback control circuit to achieve high-accuracy output voltage and current control , thereby greatly reducing the number of power circuit components and simplify circuit design has been successfully used in mobile phones, wireless public telephone, cordless phones and wireless routers and other products charger / adapter. “(Click here to buy Lenovo ThinkPad i1210 battery .)

In order to further improve the power conversion efficiency, reduce standby power consumption, we have further introduced the industry-leading five-star standards to meet the second generation of the primary side controller AP376x series, its no-load power consumption less than 30mW can easily meet the energy of the Star EPSv2.0 and five-star standard mobile phone charger all of the world, including the charger / adapter, and no-load energy efficiency standards. “Xin Wu said.(Click here to buy Lenovo ThinkPad i1200 battery .)

According to Wang Yun introduced Fujitsu’s charge management products are mainly targeted at the 2Cell above market, and 2 ~ 4Cell applications have to be among the biggest market in notebook computers. From 15 years ago, Fujitsu power management R & D team and Fujitsu notebook R & D departments, began developing the charge management for laptops IC. (Click here to buy Lenovo ThinkPad i1300 battery .)

Through several generations of continuous development and improvement of products, new research and development of the lithium battery charge management ICMB39A132 and MB39A134 in Taiwan and mainland China makers are applied in many other places, but also by the recent high-profile Internet access to this market’s attention. “In the notebook computer applications which, due to a few years ago rechargeable battery explosions happened one after another so that all notebook manufacturers charging part of the design of the design of increasingly importance in the management of part of the charge would prefer to use a high quality, stability and reliability of the big brand power management IC. “he said.(Click here to buy Lenovo ThinkPad i130 battery .)

However, BCD Semiconductor Corporation from AC / DC Products Dr. Wu Xin, director of MCU + PWM is more optimistic about the program, he considered that the formation of special charge management IC circuit control scheme is simple, but relatively simple function, usually only on the specific parameters of the lithium-ion battery conduct charge, and different models of portable products are often using a different model specifications of lithium-ion batteries, if we adopt special chip, it will result in duplication of development efforts and waste of resources.(Click here to buy Lenovo ThinkPad i1271 battery .)

“Using MCU + PWM to achieve Buck circuit and control method of low-cost flexible and can easily be improved and upgraded, can be applied to a variety of lithium-ion batteries.” Xin Wu said.(Click here to buy Lenovo ThinkPad i1260 battery .)

Portable electronic products in the past mainly uses disposable batteries or alkaline batteries as a power supply is different now, whether laptop, mobile phone or MP3/MP4 player, have all the basic use of lithium ion, nickel-cadmium or nickel-hydrogen rechargeable batteries, not only reduces the use of Cost is conducive to environmental protection, and more importantly, a larger battery capacity can be done in order to obtain longer battery life. (Click here to buy Lenovo ThinkPad i1391 battery .)

Rechargeable batteries because of their characteristics to the system developers have also made new demands, in order to make rechargeable batteries have a longer life, the correct charging circuit design and device selection is essential, whether it is an external charger, or system Internal rechargeable power management program is required depending on the use of careful consideration.(Click here to buy Lenovo ThinkPad i1370 battery .)

Single-chip charge management programs or will become a mainstream

ThinkPad R400 (2784A54) Notebook, as a business model, using Intel Core 2 Duo T6670 processor, dual graphics cards to switch. R400 is the closest appearance and T400 models, we have learned in the market, this notebook is being promotional price of 5899 yuan.(Click here to buy Lenovo ThinkPad X300 battery .)

Appearance, ThinkPad R400 (2784A54) Notebook extension of “black” in the classic mold design, using high-elasticity carbon fiber material made of polyethylene to enhance the wear resistance of the fuselage, reducing the weight of books, with a 14.1-inch screen, the entire machine weighs 2.36 kilograms.(Click here to buy Lenovo ThinkPad X200 battery .)

Configuration, the Lenovo ThinkPad R400 (2784A54) Notebook uses Core 2 Duo T6670 processor, Intel GM45 chipset, Intel 5100 AGN wireless card; standard 2GB of memory, 320GB hard drive, Rambo drive; Intel GMA X4500 set of explicit and ATI Mobility Radeon HD3470 discrete graphics switching; Integration 1.3 million-pixel camera; pre-installed Windows Vista Home Basic system.(Click here to buy Lenovo ThinkPad W700 battery .)

ThinkPad R400 (2784A54) not only has a mainstream notebook configuration, and the two graphics to make books more power, but also highlights of this notebook. Friends interested may wish to look .(Click here to buy Lenovo ThinkPad i2621 battery .)

Popularity of notebook computers and mobile office needs of increasing battery life is also more frequent. Factors affecting consumer laptop battery usage time is not long enough, and security is not guaranteed that two aspects of consumers are most concerned about.(Click here to buy Lenovo ThinkPad i1260 battery .)

The recent “laptop battery door” event, the  Three Dell gient Dell, Toshiba, Toshiba, Lenovo Lenovo, ThinkPad, HP, Apple, Acer, Acer, Samsung, LG and so on successively provoke “fire” upper body.(Click here to buy Lenovo ThinkPad i1250 battery .)

Let’s review briefly list the battery caught fire explosion

★ 2006 Nian 4 month, Hewlett-Packard announced a potential fire risks 15700 batteries were recalled, did not disclose the specific reasons for the battery hidden and production side.(Click here to buy Lenovo ThinkPad i1241 battery .)
★ 2006 Nian 8 month, Dell announced the worldwide recall of 4.1 million batteries manufactured by Sony, involving a variety of computer models of Dell’s 20.(Click here to buy Lenovo ThinkPad i1230 battery .)
★ 2006 Nian 9 months, one manufactured by Lenovo, the ThinkPad model T43 notebook computers in the United States Los Angeles International Airport caught fire, Japan’s Sony Corp., confirmed the use of its own production of laptop battery.(Click here to buy Lenovo ThinkPad i1210 battery .)
★ 2006 Nian 10 months, using the Sony laptop battery Lenovo notebooks in the country led to Beijing Normal University dormitory fire. Cause of the fire given the school is the user did not disconnect the laptop to leave the charger plug, due to charging time is too long causes high tempreture.(Click here to buy Lenovo ThinkPad i1200 battery .)
★ 2007 Nian 5 month, Toshiba indicated that the company is equipped with laptop battery fire occurred in the recent accident, caused the accident is Sony’s battery modules, and recommends that users replace the batteries as soon as possible.(Click here to buy Lenovo ThinkPad i1100 battery .)
★ 2007 Nian 9 months, Shanghai a user a Dell laptop battery exploded burning, after Dell Computer China, the spokesman confirmed that the explosion of laptop batteries are hidden after a fire has been recalled due to the presence of the column model.(Click here to buy IBM Thinkpad Z60m battery .)
★ 2008 Nian 1 month, a South Korean reporter covering the use of LG laptop exploded and caught fire. LG said that after an investigation since the explosion was caused due to unexpected high temperatures. LG has also received feedback from another user laptop battery melts for no reason, and decided to stop selling the laptops, but does not include product model.(Click here to buy IBM Thinkpad X61 battery .)
★ 2008 Nian 2 months, Samsung P10 laptop battery melts due to the fires. Samsung has not yet announced the reasons, saying that is still under investigation.(Click here to buy IBM Thinkpad X60 battery .)
★ 2009 Nian 6 months, notebook computers for baby to play music, the battery had suddenly burst. The afternoon of June 3, lives in Guangzhou, Tianhe District, Happy Valley Gardens, Ms. Qiu experience Cry scene, fortunately casualties. Apple notebook maker claimed that, after the battery explosion was not identified quality problems, but would be willing to “customer satisfaction” starting to replace hardware.(Click here to buy IBM Thinkpad W500 battery .)

Wrong information: To charge the battery when the electrical impulse adjourned after filling a full 2 hours, this is conducive to increasing the battery saturation.(Click here to buy Lenovo ThinkPad i130 battery .)

Truth: laptop battery protection circuit in general have had power, full power will automatically cut off the charging circuit, power supply equipment only for notebooks, even if the battery and then charge 10 hours to no effect.(Click here to buy Lenovo ThinkPad i1271 battery .)

Wrong information: If you do not use rechargeable batteries, you should use up its exectricty before you keep it other where.(Click here to buy Lenovo ThinkPad i1370 battery .)

Truth: In fact, not only are the above-mentioned rumors, lithium-ion batteries in the end that was full of preserved or preserving the shine is sure to make a lot of people confused? Answer to this question from a congenital defect of their talk, that is “aging effect.”(Click here to buy ThinkPad i1361 battery .)

Lithium-ion battery in storage for some time, even without the use of recycled some of its capacity will be a permanent loss, because the lithium-ion battery anode material from the factory is started when the failure of their journey. Different temperatures and the saturation level of the range is also different under the age of the specific range can be seen in the table below.(Click here to buy Lenovo ThinkPad i1351 battery .)

Thus, the higher the storage temperature, the battery charge of the more full, the greater the magnitude of capacity. So for long-term preservation of lithium ion batteries, the user should be controlled at 40% of its electricity and stored at 15 ℃ or lower temperatures can be. For those nickel-metal hydride and nickel cadmium batteries did not exist in this “aging effect”, after the long-term storage in just a few full charge and discharge can be restored to its original capacity.(Click here to buy Lenovo ThinkPad i1300 battery .)

Wrong information: 2 Nominal capacity of the same (for example, 800mAh) batteries, if an actual measured capacity of 860mAh, the other is 805mAh, so 860mAH’s definitely better than the 805mAh.(Click here to buy Lenovo ThinkPad i1391 battery.)

Truth: In general, different models (different sizes) and lithium-ion battery, the higher the capacity the longer the time used. If you set aside such factors as size and weight, of course, is the capacity the better. But for two nominal capacity of the same (for example, the example above) the battery may not be. (Click here to buy Lenovo ThinkPad i2621 battery.)

Since the actual high capacity battery that is likely to add in the electrode materials used to increase the initial capacity of the material, reducing the stability of electrode materials used. (Click here to buy Lenovo ThinkPad W700 battery .)

The result is shown in dozens of cycles, after the rapid decay of high capacity piece, while the capacity is still low strong. Many domestic firms in order to reduce costs and expand sales, often on the use of such tools to produce high-capacity battery. Users will find that six months after the use of working time is much shorter. In short, to improve capacity at the expense of sacrificing cycle life, battery makers are not material up and down the article, it is impossible to truly improve the battery capacity. (Click here to buy Lenovo ThinkPad X200 battery .)

Wrong information: As long as rechargeable batteries used properly, it will, within a certain period of circulation appears best to achieve maximum capacity.(Click here to buy Toshiba Qosmio F55 battery .)

For example, the early nickel-metal hydride, nickel cadmium batteries, if used properly, regular maintenance, will be 10 to 200 cycles points to reach its maximum capacity (factory capacity 1000mAh Ni-MH battery in the loop 100 times, the capacity may be to 1100mAh).(Click here to buy Toshiba Dynabook UX battery .)

Truth: It’s a battery in the Japanese products are more common technical specifications in its cyclical nature of the book can often be seen in Fig. However, the current mainstream of lithium-ion battery, this cycle peak phenomenon does not exist. Because the lithium-ion batteries from the factory to the scrap, with a capacity less performance for the circle time, never had the capacity rebound phenomenon. Maybe have a friend who will ask some ThinkPad notebook users through the deep discharge, you can restore the battery capacity. In fact it is only testing the software error detection only, the battery’s actual capacity did not improve.(Click here to buy Toshiba NB200 battery .)

Lithium-ion batteries in the end there is no best state? The answer is yes, it suffered with the ambient temperature change. Under normal circumstances, lithium-ion batteries in 25 ℃ ~ 40 ℃ environment would show excellent performance. By low temperature or high-temperature state, its performance is being reduced. For example, according to your outdoors in direct sunlight using a laptop computer cases, there is no longer in the indoor use.(Click here to buy Lenovo ThinkPad X300 battery .)

Unknown History Of Laptop Battery

When you enjoying time with your laptop, have you ever think about the history that has gone on to help us get to where we are today. To tell you the truth, those laptops have through a long way to become as powerful as they are today, but what we know is how far the laptop battery have come. The history of our laptop battery is very extraordinary. Maybe you don’t believe, but they have experienced twists and turns of a long path, and in the end they still have a long way to go before they become perfect. However, we should feel happy, because we have learned from our mistakes and come up with a battery that is easier to carry, what’s more, it boast an longer battery life than older ones.(Click here to buy Lenovo L3000 G230 battery .)

The laptop is a very fasinating invention. It allows us to use our computer without having to be tied up to a wall. However, back in the day you could not run your laptop off the batteries alone for too long. Thanks to people always looking to improve what we already have, we have made leaps and bounces  in the history of the laptop battery. When we think of laptop battery many of us think about the rechargeable ones that we often use today. However, did you know that they used to make laptops that ran off AA batteries? Not only did it take a large number of batteries to run a laptop computer, but they could not last long. Many people today remember the laptops running off the very heavy lead acid based batteries. Not only did these batteries not last long, but it add weight to your laptop. You might as well been carrying around with a desktop in your hands or on your shoulder. Proudly, the history of laptop batteries have kept improving. In fact, after we turned in the old lead acid batteries we moved on to the nickel cadmium batteries.(Click here to buy Lenovo ThinkPad R400 battery (14-inch wide) .)

Nickel cadmium batteries are alse called NiCD. However, these batteries were not around too long because nickel metal hydribe batteries (also called NiMH) soon take its position. Both of these batteries lasted a lot longer than the old acid batteries, however, we were not done making great batteries just yet. After that we found the lithium ion batteries as well as the lithium polymer. These are the batteries that nearly all laptops use today. However, it is absolutly not the ending of our history with laptop batteris, and we can bet that this is another begining of the history of laptop batteries. As the popularity of laptops keep rocketing, the demand for a longer lasting batter is also growing. Before we made a battery that would never die, we would always going to see more improvements in the field of batteries.(Click here to buy Lenovo ThinkPad SL300 battery .)

People use their laptops for many different purposes. Some for school use, others for work. However, no matter what the purpose would be , you just want your battery to last longer. You should know that you can count on the battery when you need your laptop the most. Because of this, we should feel happy because our batteries keep improving. The history of laptop battery is a long one, and it will just keep getting longer. All that means is that we are going to end up with some great batteries over the course of a few years. As companies jump at the chance to improve their laptops you are going to see some of the worlds best batteries come to be. What that means for us is the fact that we can have great running computers that do not die after a few hours.(Click here to buy Lenovo ThinkPad T400 battery (14-inch wide) .)