A unified interface & one-sided access

Later, Dixon went to pass, the Association to visit Frederick and battery grip a number of cell phone stores, but the surprise is that even a number of sales that had never heard of the “cell phone charger uniform standards.” When a reporter referred to “universal charger”, the response of the majority of sales are “not that universal chargers do.” National Institute of Standardization of this province, experts say the current market popular “universal charger” is not a unified standard general-purpose charger. Universal charger can be used for different models of mobile phone charger, but not as common as a USB charger port, both connected with the power outlet can also be connected to the computer and other laptop battery equipment.

“At present, a unified interface, one-sided access to the power side of the USB interface, for most consumers do not practical significance. After all, the use batterymag of port to charge the phone the consumer is not over, not to mention the body of mobile phone interface is not unity, can not be considered a truly unified mobile phone charger. “mobile phone chain, Purchasing Guide batteryblog Association Hang Huang told reporters that although the standard has been implemented more than a month, but due to technical problems, be able to use common cell phone charger is still not available, and the all the different brands phone battery charger is a vast use of a common project in the short term difficult to achieve. In the Suning Appliance, Nokia cell phone sales staff said that although 15 certified by the department concerned in the general-purpose charger Nokia’s products there, but due to brand competition, product cost and other factors, really want to promote the opening of this standard will not be easy with canon bg-e5 battery grip, at least Hefei is also the current market can not be bought using a common cell phone charger.

dell battery

sony battery

acer battery

Factors of affecting the quality of the battery

Mobile phone Dell xps m1330 battery life is one of the factors that consumers primarily taken into account ,when buying cell phones. , consumers are afraid to buy the poor quality and endurance battery of the mobile phone. The advantages and disadvantages of mobile phone battery can affect every aspect of the user, one is to influence the handset standby and talk time;

another one , to now smart phones, they will reduce the phone’s playability ,such as the popularity of high-pixel camera phone, the battery for sony battery capacity and quality of the increasingly high demand for small capacity of poor battery life ; Moreover, the low-grade phone battery will affect personal safety.

Now the majority of the market for sale or use of mobile phone batteries are for lithium battery, several factors affect the quality of the battery in general,they are:

1. For the battery capacity. The higher the dell battery capacity, battery better. The battery capacity (effective to discharge capacity) indicators determine standby time and talk duration. The higher capacity, longer talk time.


2. For the overall performance batteries. Comprehensive performance has two aspects, on the one hand ,it is the resistance of batteries, the resistance must be in a certain range, or else it will affect the battery capacity; second it is discharging performance for the batteries for Dell xps m1530 battery , better discharging stability, higher effective utilization of the battery.


3. In order to ensure that the batteries in normal working condition. When the unexpected short-circuit when the internal battery will automatically power off, knowing it is not short-circuit before returning to work. Counterfeit mobile phoneDell xps m1730 battery a little short, and some will be hot or even burning.


4. For the battery cycle life. Cycle life refers to the repeated charge and discharge the battery , more using the number of cycles ,longer battery life .

It is a great concern for consumers to choose a superior quality, the price level of the battery,so you must pay more attention to the battery ,when you are buying battery,in case you can get a better battery for vgp-bps10.

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The analysis of the laptop battery replacement cost

With the growing popularity of notebook computers, laptop battery is getting more important to consumer attention. A good laptop battery is not only give the great convenience for user’s mobile commerce and digital lives, but also can eliminate insecurity of future use. A bad laptop battery, for the user unable to meet their mobile digital life. It will also bring the hidden dangers to users, especially security issues. A battery explosion caused the destruction of a notebook, or even ohter serious consequences. So choose a good laptop battery is significantly thing.

However, the thinkpad x40 battery original price is hundreds dollars. So that many users used to choice and better cost-effective laptop battery replacement. The laptop replacement market price is between 30 – 100 dollar. So it is difficult for consumers to judge its quality from the price.

In this article the author will help the customers to choose the best thinkpad x41 battery from the current market. We will analyze the composition and design of laptop batteries to compare the battery price and quality.

Laptop battery is made up of a lithium-ion 18650 cells with protection circuit board and PVC plastic shell. Then we will analysis of their costs on item in the follwing steps:

1. There are three kinds of 18650 lithium-ion battery in the market: 2200,2400,2600 mA. A typical ThinkPad X41 Battery with six battery assembly (Series 2 and 3). If it is a genuine original batteries, typically Japan and South Korea or domestic manufacturers A formal 18650 cells. These batteries have the quality and safety assurance through rigorous testing, the cost is usually in the 3-4 dollars (based on the different capacities). So a normal laptop battery (6-cell) costs around 20 dollars. If B grade, or batteries disassemble from the old machine (the quality and even safety issues batteries from Japan and South Korea). Their price between 1.5-2 dollar. Such Lenovo Thinkpad X61 battery assembly or re-assembled into a 6cell laptop battery cost 10-15 dollar. In addition, even worse, some manufacturers use more poor illegal 18650, often have security problems (that can cause the battery explosion), its 6cell laptop battery only cost 8 dollar or less.

2. Laptop battery PCB control panel : a good control panel can extend laptop battery life and protect the safety. Its cost is usually 10 dollar; If it is bad dysfunction PCB ThinkPad X60 Battery control panel, or board disassemble from the old machine, its cost is only 5 dollar.

3. Laptop battery PVC plastic shell, the cost of a good plastic shell is 5 dollar, a bad Lenovo thinkpad x200 battery low-quality goods cost less than 1.5 dollar.

4. Labor, equipment, venues, with an average around 4 dollar each cell.

On the basis of the above , a good quality assurance laptop battery such as VGP-BPS9/S (6 cell) costs should be at 40 dollar. So a good 6Cell laptop battery replacement price (including operations cost and profit) is oftern 60-80 dollar in the market ; If it is a inferior quality goods, the market price is 40-50 dollar; If it is the lowest quality laptop battery (the cell and PCB control panel are both disassembled from the old machine), the price is 30-40 dollar.

In all the laptop battery quality is as its price. We should buy the suitable Sony VGP-BPS8 battery in the market, do not take too much attention to its price or it is orginal item or not.

Silica nanoparticles and solar cells

Scientists laptop battery have been working to find better materials and methods to create high-performance solar cells. U.S. scientists, a new study found that in silicon solar cells formed on the surface layer of silicon nanoparticle films can enhance the ability of its energy conversion and reduce the battery’s own heat and prolong life. Relevant papers will be published in “Applied Physics Express” (Applied Physics Letters) on.

The study was conducted by physicists at the University of Illinois Munir Nayfeh leadership, mainly targeted at the ultra-violet absorption and transformation. In terms of traditional solar cells, ultraviolet light leaking out of line either directly or by absorption of silicon devices, but it is converted into heat instead of electricity, which may affect the service life. In 2004, published in the “Photonics Technology Letters” (Photonics Technology Letters) in a study, Nayfeh confirmed that the UV lines with the appropriate nano-scale particles sony battery effectively combined to produce electricity.

In order to achieve practical results, Nayfeh and his colleagues conducted a new study. They first use its own developed a proprietary technology to larger silicon switch is made of discrete nano-scale particles, they will be issued in different colors of fluorescence. Then, the researchers of these particles dispersed in isopropyl alcohol and wipe the surface of the solar cell. When the alcohol evaporates, the surface of the battery will eventually form a tight layer of nano-granular films.

The researchers found that if the solar cells covering the surface is the thickness of 1 nm blue fluorescent nano-particles thin-film, the entire cell will be able to transform more than 60% of the UV lines, but the visible light, the conversion rate of increase less than 3%. However, if the battery is the thickness of the surface covered by 285 nm red fluorescent particle film, then the ultraviolet ray acer battery can increase the conversion rate of 67%, while the enhancement of visible light can reach 10%.

Nayfeh that the performance of solar cells such improvements should be more attributed to the improvement of the battery voltage rather than current. He said, “Our study conclusions indicate that charge transfer within the thin film and nano-particle interface, the importance of the amendment.”

Nayfeh said that the new coating process can easily incorporated into the current solar cell manufacturing process, while the costs are not an additional increase.

Nokia intends to be completed end of this year recovery plan for bad batteries

Nokia Corporation (Nokia Corp.) Spokesman Marianne Holmlund said the toshiba battery company plans to complete its year-end 2007, the battery restoration program. The company currently too much heat is being replaced with 4,600 million cell phone batteries.

According to “Nihon Keizai Shimbun” (Nikkei) reported, Holmlund said, Nokia is working with Matsushita Electric Industrial Co., Ltd. (Matsushita Electric Industrial Co.) Cooperation to ensure that problems with lithium batteries can be repaired as soon as possible. Those batteries from Matsushita Battery Co., Ltd. (Matsushita Battery Industrial Co.) Manufacturing.

The Finnish mobile phone giant has released the battery product advice, because of the problems these batteries overheating while charging the battery itself, leading to deformation. Nokia insists that this is not a serious injury due to battery overheating carried back to the response, but consumers demand the product should be replaced.

Holmlund said that Nokia batteries to fix all problem is very difficult, like the call back to the car and computer parts products, fixed rates are usually 30% or less.

If the battery is low repair rate, Nokia is likely to consider continuing the Dell Latitude D520 Battery in 2007 after the rehabilitation program.

Holmlund did not indicate the cost of replacement batteries. Once the battery is expected to identify the cause of the malfunction, Nokia and Panasonic will be sharing costs.

3G Mobile Phone Battery information

3G era will be fully elaborate acer battery. Dah Sing Energy Co., Ltd. Shandong, with Ren Xiaoping, general manager, said, 3G mobile multimedia, multi-functional mobile phones are bringing high energy consumption, the solution necessary to raise the chip integration and lower power consumption; second is to improve the energy density of batteries. The battery energy density is higher than that of at least 450mAh, can meet the functional requirements of 3G mobile phones. He said the development of lithium batteries since its density is no longer much room for further improve the current energy density available in the market for 420mAh, while the Shandong Tongda batteries through the sony battery positive electrode was modified to improve density, the current can be achieved 475mAh, 475mAh is equivalent to 063,048 of 1200mAh, by the end of the 3G push to reach 520mAh Li-ion battery output reached 10 million in the second half. In addition, its advantage is also reflected in the high security, circulation rate. With the big goal is to first open the domestic second and third line of mobile phone brand market, and then enter the domestic market front-line mobile phone brands.

At present more than 100 lithium battery manufacturers, with an average dell battery battery energy density of 850mAh, while the same energy density of up to a large battery 950mAh, the maximum can be 1200mAh. Shenzhen BAK (BAK) Battery Co., Ltd. exhibition personnel, BAK’s 3G cell using new materials, new technology, the highest energy density has reached 1270mAh.

Solar energy use is growing, while mobile phone battery market potential for solar energy applications immeasurable. The exhibition, shows the solar cell to achieve an unlimited mobile phone that can be achieved under low-light charge, the battery capacity of up to 700mAh.

Stereo Audio Power Amplifier good results with apple battery

In the LED backlight driver IC, audio IC field, domestic new army began to make moves. Chiphomer Microelectronics (Shanghai) Co., Ltd., general manager of Lü Chang introduced the company has developed many new products, such as the development of LED backlight driver series IC, its advantage lies in using parallel methods, packages unique light consistency good. New CP2130 for Wu Lu parallel white LED white drivers, the need for series inductance on the radio there is interference, and thus used in parallel. Product conduction voltage drop and generally inconsistent Chiphomer using its patented control technology, brightness up to 0.5%, while generally only 0.3%. Kai Pan is also a live demonstration of the newly developed stereo audio power amplifier CP2260, CP2268, using fully differential technology to realize high sound, will be able to meet domestic market demand. He also said that the current bullish class AB applications market, D amplifier power consumption advantages, inter alia, unless there is a revolutionary breakthrough in the market will not be much improvement. In the touch-screen control system fujitsu battery for IC and low noise LDO system IC field, Kai Pan is also frequent new product.