dell battery tips

Baltimore gas electricity supplier Constellation Energy recently announced it would invest Astrum Solar company, the amount of investment was not disclosed. Which will provide for the construction of Baltimore’s public value of about U.S. $ 1 million solar battery panels.

Astrum as the East Coast’s largest provider of residential solar battery panels, one will be installed this year, about 2,000 residential solar systems. Each household, the average installation price of solar systems panels for the $ 30,000 each, could generate 10KW.

Home solar battery panels can help reduce peak electricity grid pressure, such as using air conditioning and charging for electric vehicles. This is to reduce the burden on the local network part of the plan.

Rental and maintenance of solar panels to make solar energy companies highly profitable. Google recently invested $ 280 million to the residential solar panel suppliers SolarCity. Largest supplier of solar panels SunRun company also won a General Electric’s “ecomagination” challenge, to get an unknown number of investments.

Burke to a study by the University of California, installed the solar battery panels of the housing prices an average of 17,000 dollars.

June 22, in recent years, the media, the lithium-ion battery cathode material - lithium iron phosphate is very confusing reports of patent disputes.

Currently in China, lithium-ion battery is a local company involved in the choice for battery electric vehicles. And also widely used lead-acid batteries and nickel-metal hydride batteries, lithium-ion battery energy storage better, greater energy density, longer cycle life, no memory effect recharge better, and can basically meet the size, life span, Power and other electric vehicles require a higher demand.

Reporters learned that the lithium-ion battery performance depends on two factors: First, the quality of lithium iron phosphate; second lithium-ion battery production equipment.

Lithium-ion battery production process is extremely complex, the necessary equipment and testing instruments of more than 100 species. From the point of view this exhibition, in addition to individual testing instruments, domestic enterprises can meet the basic needs of all the equipment, but the import of key equipment is reliable. Production processes such as batteries, anode and cathode materials must be uniform coating is critical to ensure consistency of single cell processes, it is mainly the domestic equipment; imported membrane coating nanoscale thickness of only 30-40 microns, domestic equipment simply can not do; in the battery electrolyte into the single links, workshop environment requires not only a constant humidity and temperature, but also require clean, mixed with an electrolyte in the dust, it may cause the battery to short circuit.

Currently on a global scale, the initial commercialization of electric vehicles and plug-in hybrid expensive, mainly because the manufacturing cost of lithium-ion batteries get down, the biggest one is the investment in equipment. It is understood, Shenzhen, BYD is the construction of a new lithium-ion battery production base, all equipment imported from Japan, a total investment of more than 50 billion, the purpose is to maintain its electric vehicles in the domestic market leader. The problem is, the next 10 years, the commercialization of electric vehicles will not be a major breakthrough, when such a large investment costs can be recovered?

Microsoft recently released the report entitled “win7 Power Management” 14-page white paper describes Windows 7 Power Management technology is how to reduce energy consumption. If you want to know exactly how energy efficient, the white paper will give you the answer. If you just want quick and easy to understand, the following will tell you that Windows 7 primary means of energy conservation.

1,idle resources power consumption

When a computer starts, not always running at full capacity, so there will be a lot of free time, so the idle time power consumption becomes an important power management technology. In win7, the idle power consumption has been effectively improved, when a hardware is not working after a certain period of time will enter a low power state has to save battery power. Including CPU, hard disk, memory and network elements have adopted this technology. For example, a full-power operation of the CPU power consumption 35w power consumption at idle is almost 0, only this one will be able to save a lot of power.

2,by the trigger to start the service

Usually the system will be in service when the system starts with the start, and then resides in the background waiting for calls. In Windows 7, the service is only part of the system is triggered by some event until after the start, such as the insertion of a device or change the IP. This reduces the long-running background process in the number of services.

3,increased processor power management

win7 integrates the latest in power management technology, which allows Windows 7 based on the current load and performance requirements to dynamically adjust the CPU performance.

4,Adaptive display brightness adjustment

Microsoft said, usually 10-15 minutes in non-operation, the monitor will automatically shut down. However, in actual use will be more short-term non-operating conditions, in order to better energy efficiency, the technology will reduce the display brightness. In addition, it can take advantage of some of the sensing device, according to the ambient light to adjust the display brightness.

5,low-power audio

win7 will support Intel’s low-power HD audio specification, it allows the codec to enter the low power battery state. win7 also supports selective suspend technology to shut down idle equipment, such as microphones and cameras such USB devices.

6,timer integrated

The current processor instruction space through the use of spare processing time to save batttery energy, but most of the energy-saving technologies need a certain length of idle time to get energy-saving effect. And this technology by making the Windows kernel to terminate at the same time and focus more dispersed than the original timer, disposed of in a short time, thus increasing the processor’s idle time.

In addition, when using the battery in the laptop case, win7 will reduce non-critical activities daemon frequency.

7,Bluetooth devices to improve power

When win7 detected Bluetooth devices in a low-power state, they will be temporarily closed, the “selective suspend.”

8,network equipment to improve power

win7 in the radio network controller for low-power mode compatibility has been enhanced, and only in the wireless AP devices support low-power mode in the case will be enabled. Vista because it can not detect in advance whether to support low-power mode, the wireless network connection will lead to a sudden interruption. win7 will prevent this from happening, before entering the low power mode will detect the first wireless AP support this mode.

9,Typical application optimization

In addition to the above listed improvements, Microsoft also turned to some specific applications, including search, browsing and small game without networking. Here is the DVD player where the optimization part:

Without affecting the playback performance under the premise of the CPU to maintain low-power mode

By changing the structure to improve the desktop window manager and GPU power

Intelligent data caching can reduce the drive speed

The above is in power management win7 nine important improvements compared to the previous system can save more energy. In addition to these improvements, IT professionals can use to find the power management may affect the diagnostic efficiency of the power supply problem.

According to foreign media reports, Samsung 10-inch Tablet PC Galaxy Tab 10.1 which will for sale in USis thinner than iPad 2 but the battery life is much worse.

According to reports this week and found the actual use, and finally have a tablet PC than iPad 2 is really thin, even if only a thin 0.2 mm; and Galaxy Tab 10.1 iPad 2 lighter than the former and the latter weight 1.25 pounds 1.33 pounds.

Boehret trial in the United States is on sale this Friday, only Wi-Fi connectivity of the Galaxy Tab 10.1, Capacity 16 GB version for $ 499 each, 32 GB version priced at $ 599, then the same with the iPad 2.

However, with the fourth generation communication system (4G) connectivity of the Galaxy Tab 10.1 will also be on sale next month, with the largest U.S. mobile provider Verizon network, 16 GB and 32 GB version priced at $ 529 each and $ 629, less than Verizon and sold by iPad 2 price, the same version for the price of $ 629 and $ 729.

However Boehret that these two Tablet PC’s biggest difference is that battery life. According to her 75% screen brightness with continuous video playback test, the Samsung Galaxy Tab 10.1 Battery only for 5 hours and 38 minutes, compared with iPad 2 hours, 9 minutes, 10 more than half a little bit.

On the other hand, Galaxy Tab 10.1 to adopt wide-screen size, more than 9.7-inch screen iPad 2 slightly longer; and its two-way cameras captured the picture quality, good than iPad 2. However, iPad 2 iOS operating system used by the applicable number of applications, than the Galaxy Tab 10.1 using the Google Android operating system, hundreds of thousands more .

Sanyo “eneloop” rechargeable batteries new versions, “Pro” version of advertised capacity of greater power for flash and other big occasions, SANYO press release issued earlier that with “XX” version is the same, the capacity of at least 2400mAh, called the 1900mAh battery than the general version of the 25% higher, on July 21 this year in Japan.

 ”Plus” version is advertised safe, low temperature, suitable for children to use toys and other situations, with the thermistor in the battery (PTC Thermistors), causing the battery to prevent improper use of temperature, is expected this year in Japan on December 1 .

 There were also released previously only heard of the “Qi” wireless charger, July 21 is expected to market wireless battery charging carrying case N-WL01S-W/-K (white and black), can put III or IV into two cells, with the Panasonic Qi wireless charging plate QE-TM101-W/-K (white and black) is expected in the June 24 listing.

Many and photographic equipment concerned all need the support of the nimh batteries, such as external flash, and so on. And in the product line fields have been leading company in Japan sanyo announced yesterday, officially launched the new news upgrade eneloop pro nimh batteries, the specific time to market in July 21.

It is reported, the new black eneloop battery than the older version of the pro eneloop battery capacity, up 25% to reach 2400 mAh, performance is very good, can make the flash and other accessories efficient work. And it is inherited the product of “generation before very slowly power generation” characteristic, and even after a year after leaving can maintain about 75% of the electricity, single weight for 30 g.

In addition, they also for retail its new eneloop battery of plus. This kind of product more emphasis on the use of high security, built-in PTC can prevent misuse Coefficient responds as required by the battery Temperature to rise.

Research on new batteries such as fuel cells and solar batteries, Massachusetts Institute of Technology has been at the forefront of the world. Recently, MIT Materials Science and Engineering, a research team published their results: in a few minutes to complete the “Charge” lithium-ion batteries.

 The lithium battery and the existing difference is: ordinary lithium-ion battery or lithium polymer batteries are solid-state electrolyte, which electrolyte is a lithium-ion battery black mud-like liquid mixture. The internal structure of the cell, half of electrolyte “mud” as positive, the other half of the different components of the “mud” as negative, between the two films separated by a one-ion. Its “charge” is very simple, as long as the discharge end of the mud-like electrolyte removed, replaced with a new electrolyte to complete the whole process only takes a few minutes.

 Because of this battery with a lithium-ion batteries and the advantages of lead-acid battery: the electrolyte used in lithium-ion batteries cheaper than traditional “charge” time is short; liquid mixing of the electrolyte lead-acid batteries than the pure and corrosive liquid and easy to carry And acid are weak, unit lead-acid battery energy density is much larger than the weight on edge. It is expected to replace the position of lead-acid battery vehicles and promote the development of new electric vehicles, or as an alternate energy power plants. MIT News Office described the prospects that the application of the battery analogy: “The batteries ‘charge’ as it is now using natural gas as fuel for cars is as easy as filling, quick and easy. “

Acer TimelineX series of combination punches play again this year, there 3830TG, 4830TG, 5830TG three products, namely 13 inches, 14 inch and 15-inch screen. .

Acer’s 13.3-inch 3830TG Mg metal roof for the ice blue, angular look tough, a new generation of Acer TimelineX series really shows their unique characteristics. Body only 1.8kg, the thinnest is 22.2mm, life is 9 hours, with 6-cell 6000 mA lithium battery, and battery embedded in the.

Acer 3830TG (2412G50Mnbb) notebook uses Intel Core i5 2410M processor, standard 2G memory, 500G hard drive, no built-in optical drive, 1G NVIDIA GeForce GT 540M was alone in the high-end, support for Bluetooth 3.0 module, equipped with a USB2.0 Interface, HDMI high-definition video interface, 5 in 1 card reader, etc.; win7 Home Edition pre-installed system.

Aspire 3830TG the bottom of the fuselage with a conventional plastic material, and the bottom cover is easily removed down to just remove a screw to remove the cover. In heat sink area, Aspire 3830TG a dual heat pipe design, graphics card and processor with a thermal conductivity of the tube, and the two heat from the cooling module chips are relatively close, this can improve the cooling efficiency.