Sep 05

Steve Jobs isn’t one to let a little thing like a liver transplant slow him down. Some of us would take it easy: catch up on our reading, maybe even take up a therapeutic hobby like painting or music. Not Jobs, though–he’s the kind of guy who does best when he throws himself into his work.

According to a report in The Wall Street Journal, Jobs is personally overseeing the details of the continually-rumored Apple tablet device. This is, of course, a bit like the Emperor personally overseeing the construction of the Death Star, except apparently the Emperor only rarely shoots bolts of purple lightning through his fearful underlings. The Journal says that Jobs’s concern is focused primarily on the device’s marketing and advertising strategy–little surprise, given his penchant for crafting the perfect message for the company’s products.

This is hardly the first project to which the CEO has given his undivided attention: the iPhone, for example, merited a similar level of scrutiny from Jobs during its development. Despite working only a few days a week, Jobs is apparently present enough to cause unrest among his employees–the Journal describes the attention as “jarring” for Apple employees who had gotten used to having a little more leeway on their projects during Jobs’s absence.

If nothing else, though, Jobs is apparently taking advantage of his lighter work schedule to answer his e-mail, replying to the Journal’s Yukari Iwatani Kane request for comment by saying, “much of your information is incorrect.” In typical Jobs fashion, he went into no further detail.

With terse missives like that one, we’d suggest Steve take advantage of his newfound spare time to start up a Twitter account

Sep 04

The article comes from http://www.mylaptopbattery.co.uk/blog/2009/09/01/microbial-fuel-cells-a-new-direction/

Tsinghua University, China University of Pennsylvania and the latest research shows that bacteria can be dirty salt water into drinking water and electricity.
The study made clear the development of a microbial fuel cells laptop battery a new direction. In the past, microbial fuel cells are often used to generate electricity or hydrogen or methane in the form of stored electricity.
According to the Discovery Channel reported that the University of Pennsylvania scientist Bruce Logan (Bruce Logan) said that the microbial fuel cell can be organic waste into energy source acer laptop battery. Logan and other authors in the “Environmental Science and Technology” magazine (Environmental Science and Technology) published a related paper. Logan said: “In this latest discovery, we believe that by changing the micro-power generation, we can deal with salt water for desalination.”
The researchers first from ponds or other natural water samples collected. Millions of micro-organisms in the sample, some bacteria (scientists have yet to ascertain the type) will be automatically generated within their cells, electrons and protons, and they are transferred to in vitro. Other bacteria will absorb these electrons and protons, as the creation of hydrogen, methane and other chemicals such as acer Aspire 1690 batteryacer Aspire 1300 battery energy material “fuel.”
The researchers found that the use of two specially designed plastic film to take advantage of the energy generated by these organisms. This film can be produced by microorganisms isolated electron, ion, or gas, allowed to flow to the cathode or anode, respectively. Cathode, anode and membrane assembled in a small tissue box, as the same transparent plastic box. Between the film by adding a cup of pond water, bacteria start and, ultimately, can produce up to 90% purity of water.
The purity of water can be based on scientific or commercial needs to be adjusted, or even up to drinking water standards. Microbial fuel cell can be removed in the water most of the salt, because the process can reduce power consumption, it can also reduce the cost of water desalination.
The same is also studying the microbial fuel cells, Oregon State University, Liu (phonetic) said: “No matter how the treated water salinity, which will be the first time the human microbial fuel cell used for desalination acer Aspire 1410 batteryacer Aspire 5560 battery.”
Liu said: “Using this method, basically do not need to input energy; if artificially added to the cells in the organic material they can even produce energy.”
At present, both the dilute salt water to produce electricity or produce hydrogen, methane or other gases, microbial fuel cells are restricted to the laboratory. This situation will change next month, Logan and his colleagues at a winery near the installation of a large-scale microbial fuel cells, plans to produce wastewater into hydrogen.
Logan said: “At present this is only a demonstration project. But in the end wineries will be able to use the power generated by microbial fuel cell-driven cars, forklifts and other vehicles.”

Sep 04

The article comes from http://www.mylaptopbattery.co.uk/blog/2009/09/01/activate-the-aging-laptop-battery/

To show the battery is damaged. Therefore, the laptop battery maintenance and rehabilitation needs of laptop users is the topic of concern. Maintenance process is also often referred to as “activation”, “activation”, a very vivid and to reflect that the acer laptop battery “dead” and rebirth process.
I summed up the activation of a battery approach, its basic principle is that when the charge and discharge currents must be small (but not too small, or too long), there is to try to be filled, put completely. Cell damage because the battery in use after a period of time will “aging” of. Concrete expression of the resistance is bigger, at charging time at both ends of voltage rise faster, so it will be easily found for the charge control circuit has been filled, the capacity also is naturally “down”. Since relatively large battery acer BTP-42C1 batteryacer BTP-43D1 battery internal resistance, discharge voltage drop by high speed, the system can easily mistaken for a voltage not enough, lack of electricity (in fact, there is no electrical discharge).
As can be seen from the above description of the battery is a vicious cycle of aging process, the discovery of lost working hours, the battery faster than when what it should be tempered, or else it will be finished sooner or later. In addition, many lithium battery failure is the battery package of a certain energy-saving result of core failure, a bad pot of soup mouse droppings. This phenomenon can not be avoided, because the battery power-saving core of each character can not be fully consistent with a long time there are some quality, the aging first weakened, undermining the whole (series after) the discharge curve. It simply means that section of bad batteries before charging full discharge also finished first place, but this time the capacity of the other batteries have not been fully utilized.
The core of a power-saving over charge / over-discharge will not cause the battery monitoring circuit that the whole is full of / discharge end of the. For example, when charging other batteries start getting close to full charge when pressed, that section of bad batteries may have reached the terminal voltage of 4.30V or higher, resulting in overcharge damage, while others are sufficient dissatisfaction. Editor’s note: For internal batteries battery damage, the “Chinese computer education” 2001 No. 2 has a very good article - “notebook computer batteries DIY” worth learning from. Interest, courage and capacity of friends can try to open the battery pack, believe that the help of multimeter, you can quickly find the damaged batteries (voltage abnormality). If conditions permit, according to the corresponding parameters of the replacement batteries can be qualified product. The battery charge and discharge lithium-ion battery charging poses as a way of fast charge constant current in the voltage reaches a certain value and then to slow charging constant voltage mode. Notebook computers are often not strictly a constant-current charge of monitoring devices acer BTP-44A3 batteryacer BTP-52EW battery.
The system load when a large charge current on small, whereas the large, the current from the AC power adapter power margin decision. Clearly, the system will charge the battery and other components, such as CPU, hard drive, LCD and other competing energy sources. I tried to run side Superπ, while charging the way and found that the charge current in the 0.70 ~ 1.70A between the changes, can not meet the lithium-ion battery charging requirements, so I fear that this will work, rechargeable batteries were defective. IBM statement calling for notebook computers will not operate when the charge is probably the reason. Charge at boot time, if we can select the charge mode, you do not choose fast charge mode (Express charge mode), to avoid premature battery “full.”
There is a time of low battery power to prohibit the use of the highest CPU performance in order to reduce the power of the competition. If the notebook computer’s CPU is to support the use of SpeedStep technology, it is best to install the driver (the vendor will be responsible installed) to facilitate the adjustment performance. SpeedStep program icon is a blue flags, right-click performance tuning options it can occur. Under the Windows XP system, SpeedStep program will be problems, this time to rely on or to modify the BIOS parameters of the regulation of a number of brand-specific programs, such as IBM notebook computer software is very powerful tool.
Electric-discharge of lithium, or always-on, let the natural discharge better acer Aspire 1680 battery. Is best not to use physical methods (string of resistors in the class). Not to say that that was not feasible, but relatively large risk, if the internal protection circuit was not working, then set aside the batteries, and the worst is probably the battery explosion, of course, this unlikely. Circuit hidden dangerous is not impossible, a number of big-name manufacturers have found that the design of potential risk factors exist in a battery recall, as mobile phone battery when you do not hear the explosion.
Small knowledge:
In general, notebook computer battery protection circuit in the part is usually voltage block, control chip, insurance, and temperature probes. Temperature protection device is usually a one-off, the inside has a fuse (some 130 ℃ Fuse), is used to monitor the voltage regulator block work. If the charge-discharge process exceptions, immediately there will be a current through the temperature protection device, will fuse fuse, the battery’s internal circuitry at this time for the open circuit state, and can not be restored. If you want to repair only the replacement of temperature protection device, but such temperature protection device on the market hard to find. Discharge is the discharge current as small as possible, the operation is to slow down and let the CPU, hard disk stops turn, transferred the darkest the screen (or close the switch off), then do not run any programs until the laptop automatically shut down. The emphasis on small-current discharge is to prevent premature detection of laptop battery shortage. I have disabled the hard disk, close the screen, cancel the power of the state police under the laptop completely discharge (put a close to 6 hours), the battery acer BTP-58A1 batteryacer BTP-59A1 batteryacer BTP-60A1 batteryacer BTP-63D1 batteryacer BTP-73E1 battery capacity from 31.72Wh restored to 33.65Wh.

Sep 04

The article comes from  http://www.mylaptopbattery.co.uk/blog/2009/09/01/dell-laotop-battery-usage-instruction/

Notebook laptop battery is a more important component, its state is directly related to the notebook computer in the absence of the power of the environment the ability to work, so the correct use and maintenance of batteries is necessary. Laptop battery is a form of consumables in the use of a period of time, will begin to age. Original Batteries as a physical work environment factors susceptible to influence, but the main reason leading to cell loss is caused by oxidation of the DELL laptop battery internal resistance to increase, even if you do not set aside the battery, it can only be a certain degree of delay loss rate of the battery only. Therefore, the use and maintenance of the battery are a few suggestions:

1. No need to ensure that every time the full release END electric recharge, there is an external power supply conditions should make full use of external power supply;
2. A period of time to do a protection circuit placed under the control of deep-charge battery power to amend the statistics, but it will not increase the actual capacity of the battery dell Inspiron 4100 battery,dell Inspiron 4150 battery;
3. A long time without the battery, should be placed in the shade in order to weaken its internal self-passivation reaction speed; this article Source: Dell Laptop Battery Use
4. Protection circuit is also able to monitor the battery self-discharge, long-term without the battery should be charging to a certain degree of power in order to prevent self-discharge of batteries in storage in the discharge of excessive lead to excessive damage to the battery.
In addition, according to our information the battery manufacturer, Dell notebook battery charging protection measures have improved in 95% of electricity that is used trickle charging, the battery is full will no longer charge after that there will be no overcharging phenomenon. In addition, because the battery life is fully charge and discharge cycles to calculate, not simply in order to calculate the number of charge cycles (fully charged battery to completely run out of this be considered a charge-discharge cycle), not on reducing the battery life on one charge one tine. Therefore, the battery should have been inserted in a notebook is the right to use the above method, and will not affect dell Inspiron 8000 battery,dell Inspiron 8100 battery,dell Inspiron 8200 battery life.