Digital battery

Use rechargeable batteries for laptops, one of the advantages of the desktop, it can greatly facilitate a variety of environments using Sony VGP-BPL8 Sony VGP-BPL8A laptops. Introduced the first battery is nickel cadmium batteries (NiCd) battery but has a “memory effect”, each charge is required before the evacuation, very easy to use, and soon found himself nickel-metal hydride battery (NiMH ) replaced, NiMH not only failed to “memory effect”, but can do more per unit weight of 10% of electricity. The battery most commonly used is lithium-ion battery (Li-Ion), it is also ineffective “memory, compared to NiMH per unit of weight gain more power, the price two times higher than the NiMH . In the same weight, these three kinds battery is 1:1.2:1.9 ratios.

 

Notebook batteries currently used in three main categories: 1. Nickel-chromium batteries, 2. Ni-MH battery, 3. Lithium, they are generally expressed as: Ni-Cd Ni-Cd, Ni-MH Ni-MH, lithium-ion battery LI.

 

The purchase or replace the battery when the laptop for many users, “battery” may be unfamiliar. At the outset, batteries and batteries are two concepts. A battery is composed of several slightly bigger than your thumb, cylindrical, up to about 7.8 cm, 3.6 V is small units. They are the batteries, as a small battery, thanks to the combination series, that is, we see that the battery a. Then talk about how to determine if the battery is several nuclei: Inspiron 1520 battery Inspiron 1521 battery

 

One way: Disconnect the battery for the number of contacts to see, there are a few tens of cores. But it is a “minister” approach. Let’s take a look at “Cao Chong” is how, “said the elephant”: the look of your battery nominal number of v, such that 14.4v, then divided by 3.6 to 4, then turned out to be four batteries together in series. And then take a look at the capacity of the battery pack, for example 3800mAh, then prove that the two aforementioned sets of batteries in series, because the battery capacity is 1500 small - 2000mAh, more importantly, to two to reach 3800mAh. In both cases, the battery is 4 × 2 = 8 cores.

 

The composition of laptop battery

 

Notebook battery from the shells, printed circuit boards and batteries belonging lithium ion battery. People talk about batteries in general refers to the number of batteries in the battery mAh refers to the ability of the laptop battery.

 

Mainly by the protection circuit (or the secondary circuit protection), and the capacity of the circuits in two parts, the laptop battery charge and discharge management and safety.

 

Time Laptop Battery standby mainly by the value mAh decide. Under normal circumstances, a little more PA3399U-2BAS PA3399U-1BRS battery, the mAh value is greater than longest standby time. Battery life for notebook mainly by the charge and discharge times to measure the quality of the products are generally eligible to 500-600 times. Therefore, efficient use of laptop batteries within two years expired the battery is aging, standby affect the strong decrease of the mobility of laptops.

 

Laptop battery advice

 

Indeed, how to make good use of the battery Batteries, how to extend his schedule and use of living and so on, is undoubtedly the troubled mind of the majority of laptop users, a problem the use of laptop batteries There are many methods and techniques that we use usually requires more learning and application.

 

(A) Quick access to hibernation

 

No temporary use of portable computers to conserve battery power, you can set the agenda for power management, allowing the system to enter sleep mode after a period of time, but more or shorter will wait a few minutes, there is no way to make the system of the laptop immediately enter the sleep state? ThinkPad T43 battery ThinkPad T60 battery

 

Notebook computer system to allow quick access to the latent state of a simple method is to directly close the display. Press the representation would require little effort, you can make notebook computers to standby mode immediately and effectively save power. When you need to reuse the time, as long as the opening screen, the system automatically returns to pre-condition.

 

(B) the screen saving mode

 

TFT is the most important components of portable computer power to reduce its use of the battery when the power consumption, notebook makers have devised ingenious schemes, but generally are based on the screen brightness lower and even off the screen mode.

 

In some settings management of laptop power you can customize the brightness of the screen, most laptops with a shortcut keys specific adjust the brightness of the screen, typically 6 to 8-setting brightness level. Studio 1536 battery Studio 1537 battery

 

(C) Energy saving settings

 

Office machines using alternating current, most people may not be the computer attached great importance to energy saving features, but need to use batteries for laptops, using the Energy saving features should be taken seriously. How to design computer hardware more energy efficient, not a user problem to be solved. The user can be installed on the computer of the efficient use of energy saving option.

 

Energy saving settings require the user to set two: First, the computer BIOS setup program on energy saving in the profile settings, the most important thing is that there Energy savings in many settings of the operating system and operations. In the practical implementation of computer systems, Windows systems should outweigh the energy savings settings in the CMOS settings.

 

1. BIOS power saving settings

 

In the CMOS settings, most had a “power savings”, which may choose to “MaximumBatteryLife” and “Maximum Performance” and other options. “MaximumBatteryLife” is the recording power default setting mode. Computer power saving mode phones in several states such as F4809A F4812A Idle mode Idle mode, StandbyMode standby (standby) mode, SuspendMode suspend (sleep) mode. Notebooks, these parameters were able to regulate the consumption of energy, mainly in computer power saving state, the timely closure of some without the use of system equipment. If the state of waiting, turn off the monitor and hard drives, Hibernating apart from a rigorous monitoring and the hard drive, but also the memory contents can be saved on the hard drive, basic maintenance of the overall system of the computer closed, once activated, or restart the computer , office will be refurbished and pre-hibernation state. Energy saving settings in the CMOS, mainly determined by the IdleMode in StandbyMode the standby time set by the standby mode to enter SuspendMode time SuspendTimeout. Carnets PhoenixBIOS are most common. Energy saving various BIOS settings may be somewhat different, it should carefully read the screen.

 

2. Windows in the energy saving settings

 

For the average user in the Windows system to operate a better understanding of energy management can be simpler. Windows Help file in the “management hardware and software” entries, there are two laptops equipped with energy-saving elements on “Manage Energy Use” and “use of mobile machinery “in the laptop power management.” Energy saving settings in Windows, read the contents. Tecra A3 battery Tecra A4 battery

 

In the Windows “Control Panel”, “power management click, you can open the” Power Management Properties “dialog box. In the” Power Management Properties “dialog should be” power management “is set to “Laptop” and reasonable settlement “system delay”, “close the Monitors”, “Turn off hard disks” and other options. Another computer can control the opportunity to have some differences, options for the new plant and the latest computer software will be easier to implement, the detailed parameters should be based on characteristics of the computer and Windows files help to complete.

 

In addition, if your laptop integrated infrared port, no time to ban it, it can be extended the life of the laptop battery.

 

(D) Alarm settings

 

Set alarm battery time to prompt the user to record information. Is to click on Open “Control Panel”, double-click “Power” option, point “alarm” menu bar, alarm, battery low “default Windows98 column is 10%,” a serious shortage of battery alarm “Windows98 default column is 3%, may be according to the need for appropriate changes. Click the [Alarm Response] button, the warning “voice” and “displays” are selected, the “power level” May of time to select. Alarm limits so that when the battery is used, it will display a warning dialog and the buzzer alarm sounds to alert the user to record information about the delay. Finally click [OK] to exit the settings of power management. Vostro 1310 battery Vostro 1320 battery

 

(E) Opens the energy save function

 

In the “technology of extended laptop battery life ’section, we introduce the energy saving feature is the use of processor technology, which allows the performance of laptops are playing with their life stack between the time to achieve the best balance.

 

Most new notebook models in both the BIOS of the processor energy saving technology have given support, is enabled by default, if not open until the Enter the BIOS will support the option to open OK.

 

(Vi) The use of third party software to monitor battery status

 

In addition to Windows built-in features power management, there are many utilities available to monitor the battery status. For example, PowerCenter is a power monitoring tool available for free download (http://meMBers.xoom.com/TimothyBug/powercenter/index.htm). Only 800kb, is designed for computer software notebook services. In addition to the amount of PowerCenter shows the percentage of battery, but also to show the actual time and hours of time can be used. NF343 G1947

 

PowerCenter total of three display types.

(1) FullDisplay: In the window displays detailed information, including the use of battery or AC power, the percentage of the battery and the remaining time available.

(2) CompactDisplay: in use is always above the window.

(3) MinimizeDisplay: PowerCenter reduced to make the Windows taskbar, the display of information is relatively simple.

 

PowerCenter is also attached to a control center may be composed of six types of warning. When the battery - to a certain level, a warning time user, save the file being processed. In order not to waste electricity and CPU resources, PowerCenter to automatically detect the changes of state of the batteries.

 

(G) turns deliberately battery

 

Short battery on a regular basis to ensure a full charge. If you need to run completely out of battery power in the specific approach are: the dialog PowerManagement, BatteryDrain choose this particular method of feeding, all three options RunningonBatteries are fixed forever, this laptop will run. Select mode, then enter the Alerts tab and remove the warnings checkbox LowBattery and CriticalBattery check (yes, when the battery is low, the machine will not go into the suspended state). Then leave the computer running the CPU time of tasks, such as the computer automatically perform a number of computational complexity of the 3D demo program, so running out of 361742-001 371785-001 battery remaining, of course, these disposal N Do not forget to unplug the AC plug.

An important meeting ever in the middle or a long flight battery exhausted? Although the use of advanced Sony VGP-BPS10A Sony VGP-BPS10A/B battery technology, your laptop can go to one charge of electricity consumption of time. This technique is in order to take full advantage of available power.

 

If your time is only allowed to do something.

 

How to use energy savings power plan to maximize battery life. Later, you can always return to the article attempts to make more energy saving tips. To select the savings plan program, the “Control Panel” and open the Power Options. ”

 

Now, you may have a way to ensure laptop has always had the power. Maybe you take an extra battery or power lines, so that when there are electrical outlets on hand, they can charge the laptop (should always check the manufacturer’s instructions to learn more about the best how to charge the battery).

 

When these strategies fail, the next is given a computer to help prolong battery life in another way. Inspiron 640m battery Inspiron E1405 battery

 

Select energy saving power management. Power plan is to control the supply mobile PC how to manage a collection of hardware and system settings. Windows Vista has three default plans:

 

Found a balance. To provide better performance (if applicable), but the computer is idle can save energy.

 

On energy conservation program. To extend battery life the better choice. Is the cost? Performance degradation.

 

Performance. Under the battery life to maximize system performance.

 

The power plan

 

Click on the taskbar notification area icon Windows battery indicator.

 

Choose from three power plan defaults to “balanced”, “Energy-saving program,” or “high performance”. PA3451U-1BRS PA3399U-1BAS

 

You can also create your customized plans Energy Efficiency Program. For more information, please refer to the power management: frequently asked questions.

 

Reduce screen brightness. Monitors use more electricity than any other hardware are more (or even more than the hard disk and the central processing unit (CPU) has more). Some laptops with a dedicated button or dial-up, can be used to change the brightness of the screen (please check the information with your computer or visit the manufacturer’s website). Usually, you can also start from the Windows Mobility Center to adjust the display brightness. Windows Mobility Center in Windows Vista Home Basic, Windows Vista Home Basic, Windows Vista Enterprise Windows Vista Business and Windows Vista Ultimate po For more information, please “help and support” search “Windows Mobility Center.

 

Windows shutdown before shorten the time display. If you are the “short time” are not using a laptop, you can make Windows a certain time of inactivity after the turn off the screen for energy saving purposes. IBM ThinkPad T60 battery IBM ThinkPad R40 battery

 

Select Windows disable the time display

 

By clicking the “Start” button, then click “Control Panel”, “System and Maintenance, then click on” Power Options “, open the” Power Options. ”

 

In the “Select a power plan” on page pane, click the option to disable the time display.

 

In the “Change Plan Settings”, “Turn off monitor” and select Next to the laptop running on battery power running and connected to the use of the screen and the sleep parameters.

 

Click “Save Changes.”

 

Close or remove unused equipment. A number of Universal Serial Bus (USB) device connected will. If you use a USB mouse, you can unplug the mouse to connect and use the touchpad or stylus to the conservation of energy. If you use a USB flash drive, please be removed when not in use.

 

Close PC cards and integrated wireless devices. These devices also use power. If you do not need these devices to work, please turn them off.

 

Mobile PC can be like a car, while the HSTNN-lB31 PB991A battery indicator may be regarded as a table of motor fuel. Open quick car engine uses more fuel, a can of gasoline mileage you can travel less. Similarly, in the laptop to perform the operation requires a lot of energy will run out of battery power more quickly, it is not prolonged use of laptops.

 

How accurate is the battery indicator?

 

The battery indicator is not entirely accurate at all times. Energy Mobile PC will change, depending on your current operations and the time it takes to perform operations (for example, to watch the DVD read and write e-mail consumes more energy) . Therefore, the battery indicator in the report and the estimated time remaining to lag in May. In addition, when cells age, fully loaded, expressed in less than 100% higher than the old battery connection battery consumption faster new.

 

Battery indicator information reported (fully charged and the remaining percentage of power in the laptop must be connected to power or replace the battery can be used before the hour), the accuracy depends on several factors. Most of those factors belonging to two categories:

 

The use of laptops to do. Because some activities to other activities consume the battery faster, an obvious difference in power needs to change to switch between the activities of rate laptop battery. The evaluation of the power of the battery may make a difference. The battery indicator in the rest of the time depends on the implementation of the current operation, and operate according to change in May next step. A1045 PowerBook G4 15 battery

 

Battery equipment and sensor boards. Most laptops use lithium-ion batteries. As with most lithium-ion battery high capacity energy storage could be reduced as the change is old, whether or not charging for them is true. As time passes, this storage capacity will have significant effects on changes in the accuracy of the battery indicator.

 

Note

 

If the frequent consumption of lithium-ion battery and then recharge, it will quickly lose the ability to retain power. End of the total consumption of the battery is fully charged after the approach has been applied to nickel-cadmium (NiCd) batteries, and to a lesser extent, the use of nickel-hydride batteries in metal. If there are frequent on the lithium-ion rechargeable battery, but every time a consumer less power can be maintained for at least 40% of capacity, lithium-ion batteries can be used longer.

 

Assign the battery indicator on the accuracy of the information and other factors include: measurement of battery temperature and the difference in energy consumption in the circuit, and circuits used to assess the remaining capacity and the equation of time. The new “smart” battery with the calculation of these indicators, reports based on the circuit battery indicator. The earlier the battery used in the circuit is not complex, may also be less accurate.

 

If the laptop battery will not be able to retain power, or if you want to reload each day, he discovered several times, please consider replacing the Tecra A6 battery Tecra A7 battery.

 

These techniques can help you make full use of a single battery charge, and to avoid depletion of the battery problem.

Supporting the infrastructure of modern society must be based on a very high operational reliability. Internet and telecommunications switching center server farms to ensure nearly 100% of sentence “without run-time” or availability of the system, they rely primarily on a very mature technology - lead Sony VGP-BPS9/S Sony VGP-BPS9A battery of acid, while the center of data storage used in high technology. Typically, these key nodes, and many other important areas are equipped with standby power, the supply of electricity in standby mode is usually the first level inverter, the inverter pair of VRLA (VRLA) battery or yield similar battery sealed gel battery assembly section of energy conversion.

 

The reason why traditional techniques are widely used, there are many reasons, including lead acid batteries affordable, but also with exceptional reliability. But while Great but not perfect. VRLA battery life is limited (generally 12 years of life from conception), often mission critical systems using the battery as a source of backup power, but changed regularly. Failure may indeed occur. In a typical standby power, the role of the battery as its name - they still maintain a fully charged state to await the primary power failure. And when fully responsible for the prosecution small current through the float “charge to keep. If the float current is below a ceiling, then the battery in the gas produced by electrolysis will be re-chemical combination. In this case, a single voltage battery float is slightly higher than the standard value of 2.27 V, may also damage the battery. A little more tension will cause precipitation of the electrolyte capacity of more recombination more gas, these gases are not handled by the overflow valve. If the battery temperature is too high, even if the charging voltage is appropriate, can lead to loss of electrolytes. Inspiron 630m battery Inspiron 640m battery

 

Other methods of early termination of sulfation, columns and very bad network connection, the connection plate to the network and evil, the stratification of electrolyte and a grid to accelerate corrosion. There is still another, if a failure mode low, but catastrophic - thermal runaway, which is peculiar to VRLA gel batteries, and a failure mode can lead to catching fire. The only way to avoid thermal runaway is to control the internal temperature of the battery.

 

Simply monitoring the battery voltage on the detection of lead-acid battery capacity decline in the role is very limited, it has been recognized in the industry. When the battery performance diminishes, it is usually presented is that the nominal voltage, until the release of large currents can only apparent, but when its capacity has been considerably reduced voltage drop prematurely. By measuring the proportion of electrolyte to determine the condition of the battery accurately, the method of the VRLA or sealed gel batteries do not apply; routine battery of tests used in the only way is to discharge the battery to a state controlled the next, but this approach need to stop using the battery. In addition, the depth of discharge also reduces the life of lead acid battery; in on a regular basis to conduct its test backup battery discharge, and its principal power with high reliability of the system, most programs use this test to determine the battery life. Satellite M55 battery Tecra A3 battery

 

Recently, continuous monitoring may be a non-interference electronic method of detecting a single cell near the failed state, this method can not only save costs, while maintaining overall system availability. The predecessor of these systems is usually measured cell or battery (battery industry term meaning that the shell in the same packages multiple battery) voltage - despite its limitations is well known - with charge / discharge current and temperature ambient. Some systems attempt to guess the extent or strength of the internal battery, its effectiveness varies.

 

LEM Sentinel system is dependent on basic parameters of a simple analog measurement of change leading product has now become the first of three generations of the Sentinel III. It is tailored in a single chip SoC (System on Chip) IC on the integration of analog and digital technologies. The device configured in a measured terminal voltage, the temperature of the internal battery and internal resistance of the module, can provide accurate measurement results for the cost of new in most of the configuration of the backup system can afford in the budget system is the design of a key. IBM ThinkPad R51 battery  IBM ThinkPad R52 battery

 

Battery temperature and / or the internal impedance of the exponential growth, the value of the instructions they are close to failure, the system of records to track data over time, d ‘ identify possible approaches fail. All modules are configured Sentinel III with a probe for measuring the outside temperature or the patch can be bound directly to a single cell or battery casing to accurately monitor the battery temperature as much as possible.

 

The battery is used or is being loaded, you can use a mature technology assessment of the internal impedance. Typically, the float voltage superimposed DC measuring low AC voltage and AC current at that time, and then measures the results of the projection of the internal impedance, the methods of specific implementation are different. However, this method has limitations, it can not cope with a form of the exponential curve. And expiring at the failure process of a single cell in the data recorder of their failure to recognize the trends appeared in good condition, on the contrary, the problems of failure, the battery may be short term be completely ineffective.

 

LEM has developed a more sophisticated algorithm, which can be detected as early as possible is a single cell performance decay. The result is a methods test very reliable, it can completely penetrate the energy of a single layer of cells to ensure maximum reliability. It is commonly called the Randles equivalent circuit, based on the performance of the electrochemical cell from the electrical components of a network circuit, each electrical component consisting of a single cell of associated physical factors. PB994A PP2182D

 

The same features or capabilities during the discharge period of falling have also been confirmed. All the impedance of the equivalent circuit of factors are to follow curves similar fall in the early stages of failure or capacity, no significant change. If the impedance state to a single main battery indicator, it will not provide meaningful guidance, unless the volume down more than 25-30%. Because the industry standard is to replace the provisions of the performance has fallen below 80% of cell performance, it is clear that the importance of early identification of possible failure.

However, in the Randles equivalent circuit, there is a parameter in a battery failure unique (except for a simple metal corrosion, the parameters of this mode of failure by increasing Rm forthcoming) will start to change, ie CDL-in, double-layer capacitance. Figure 3 below Natiao curves of their properties; In addition, the stage performance in the ordinary course of normal cells, and the assumption that power is fully charged batteries failed, its curved shape is similar Cdl.

 

Monitoring Technology

 

This article does not detail the surveillance techniques as described below, a brief description of their behavior.

 

One by one, to feed test signals into a single cell, without requiring the entire battery in high current, there was no connection to the DC system external interference. Bipolar test signal using the original algorithm is modified, but the results show that the reliability of the signal pole. However, when tested with a unipolar signal, the DC drift. Easy to eliminate this drift and can not maintain all data features, which is characterized by precise determination of parameters needed. Use of frequency scanning signal pulse method rearrangement of different frequencies (including the test signal), allows the response of the battery voltage curves coincide with the book. RN873 Y6142

 

Once the curve derived from the potential to become a rule, you can set the firmware algorithm that style drift and eliminating it and thus be adapted to the direct input Sentinel algorithm, the average zero-sets of data voltage. This method can be reduced to the drift error of 0.1%, it will not cause a significant distortion of the data sets. Therefore, measures of waveform can also be used in the algorithm, so that the accuracy of equivalent circuit parameters above.

 

Dealing with many measurement functions and algorithms have been integrated in a monolithic integrated circuit. Sentinel module can measure a single monomer battery, also measured on all 12V battery). Up to 250 measuring points are the forms module for measurement, the measurement results can be submitted by a data bus dedicated to the battery from the data recorder, S-Box. In the large-scale systems of the battery may be a few stocks such as data flow synthesis, which is a management system locally or remotely, can make use of the S-Box in the embedded web server through a standard bus or an Internet connection to use these data streams.

 

SOC by using measures to determine the actual status of each battery, not only can provide fault detection, near this sophisticated monitoring framework will be able to have functions; can also configure other functions and services. Aspire 3000 battery LCBTP03003

 

For example, the battery internal resistance within a single cell is usually different. Over time, this state will be a problem. SoC intelligent control system can quickly detect this single cell, the terminal voltage optimization system can be transferred can not continue to charge a single battery floating around the news…

 

Real-load time management can extend the battery life: In the voltage across the same situation, VRLA battery float in the current ratio flooded high-tech batteries. This may accelerate corrosion of the anode plate, which reduces the effective life of the battery up to 30%. On the life of a certain percentage of the float can be reduced to eliminate this bad effect. However, side effects such as the life cycle are also an advantage is to reduce the incidence of thermal runaway.

 

Installing a battery pack can also provide the full life cycle of the voltage and temperature records, that manufacturers and users use. Vostro 1510 battery Vostro 1520 battery

 

Over-discharge protection: The device in the charger / UPS systems are common, especially in the battery monitor, they are based on the average voltage of individual cells of the termination of the landfill to protect the battery. However, the poor performance of the voltage across the battery may be much lower than the average voltage in the battery, but also in its termination voltage is reached before the landfill was good. Therefore, the development of a dynamic high-accuracy ‘Time to Run (outstanding Running)’ algorithm, in any single cell will be depleted when an alert is given.

 

Monitoring of battery backup required parameter as detailed as possible in order to generate the most accurately reflects the results of the battery status. This is not just a technical problem, is also an economic issue. Avoid battery failure is essential, but replaced prematurely and did not even approach the end of the battery life is extremely profitable. In addition to the measurement of each battery voltage, impedance and discharge performance, LEM will also measure the internal temperature of the battery is defined as a standard feature, is a leading global position. LEM is currently developing a magnetic flux, the sensor technology is to float, with a resolution greater than 10mA, with little or no drift of temperature, high current discharge with almost no residual magnetism, the repeatability of measurements better. The integration of these advanced features, the battery monitor is more expensive systems, but the overall life of extreme cost-effective management system. Studio 17 battery Studio 1735 battery