Charge phase of our relationship with the general charger and different frequencies are used by cyclical changes in the pulse signal to the rechargeable batteries. Mainly taking into account the pulse signal can be hp laptop battery chemicals gradually activated, the battery factory to achieve results. Similarly, when they should not charge more than the termination value of charging voltage, over-charging of the battery may cause permanent damage.
Third, the production process
(A) discharge circuit design
1, the design requirements
① the general desirability of the hp ev087aa, hp ex942aa battery discharge current of 0.2 times the rated capacity.
② must accurately grasp the discharge termination voltage, so as to avoid over discharge the battery and injury.
③ manually conducted on discharge Kai, stop control.
2, the design features of
① battery discharge voltage to the termination should be automatically disconnected loop or automatic discharge into state-of-charge.
② facilitate hp pavilion zt3000, hp 337607-001 discharge monitoring job status.
Following discharge circuit design concept map:
Discharge circuit
Driver circuit may be part of two relays form a self-locking circuit, the discharge end of the disconnect switch automatically transferred to the charging part.
(B) charging circuit design
1, the design of indicators
① adjustable constant-current charge, maximum charge current 500mA.
②Over discharge automatically into a state of constant-current charge.
③ charge to end-of-charge voltage, constant current circuit to stop working, and lock in "Charging The End" state.
2, the design hp 337607-003, dg103a features of
① the use of voltage comparators to monitor the battery voltage, to ensure that end-of-charge voltage when the charge current and timely turn-off and lock in "Charging The End" state.
② automatic and manual features Kai, both stop function.
Charging circuit with the pulse signal combining circuit for charging. The 555 timer pulse signal can be used to achieve, with 3 555 to constitute a frequency change in the cycle pulse signal. Circuit diagram in Figure.
Required to connect the entire circuit has a logical relationship which can be used with the door to non-implementation, in the design, we have adopted a 4012 four door 398876-001, pb992a with non-phase input.
1 Introduction hp laptop battery
Required the development of contemporary society, almost everyone in the use of mobile phone, mobile phone has become an indispensable daily necessities. And people in frequent use, have gradually found that cell phone batteries can not meet our demands, often in use for some time after the emergence of electric charge does not go in, shorter discharge time situation. Just a good rechargeable batteries, no electricity no time, and thus a cell phone hp pp2182l, hp 345027-001 battery repair repair instrument on was born.
Second, the design principle
(1) introduction of mobile phone batteries
Is now generally used mobile phone batteries for lithium-ion battery. Mainly due to lithium-ion hp 342661-001, hp pavilion dv8000 battery are lithium-ion (Li-Ion) and lithium polymer (Li-Pol), battery with light weight, large capacity, small resistance characteristics. But we need to in accordance with the characteristics of its charge, otherwise, its damage and will have a significant number of its rechargeable will greatly discount.
Rechargeable lithium-ion in the process should not have required the attention of charge and over-discharge, it has its own minimum voltage and maximum voltage, the general minimum voltage between 2.2V to 2.3V, the maximum voltage between 4.2V to 4.3V, so we in the design of the circuit when necessary attention to setting discharge termination voltage and hp hstnn-db20, hp 395789-001 charge termination voltage.
(B) design
The design of the circuit is mainly divided into two stages of discharge and recharge. General battery charger is only charging easy, and the repair Miriam many a discharge process.
Discharge phase are first the residual hp 396008-001, hp pavilion dv9000 battery power completely release and discharge voltage reaches its termination value. Discharge phase discharge voltage termination of the value of attention to the settings, if carried out on the battery discharge, the battery will cause great damage.
Identification of battery pack
If you have one or more comply with the above list of Toshiba laptop, make sure that has affected the possibility of the battery pack has been installed on your computer. So far the most convenient and most accurate way to verify is to use the Toshiba battery detection utility. Battery Detect utility will be identified has affected the possibility of whether the battery pack is installed in a Toshiba laptop in the Units. Once confirmation has affected the possibility of the battery pack in your computer, please prompt information in accordance with procedures to participate in the new battery pack replacement program initiatives.
Detect battery to use the program only about 200KB, so you can in a very short period of time download finished. Click here to download.
After the download according to the following steps:
1. Ask you to Windows administrator (Administrator) identity sign.
2. Download procedure will be extracted to a TOOL4CHNCS4.zip (for example: My Document) folder.
3. To enter into the folder My Document \ TOOL4CHNCS4, double-click the implementation BatteryCheck4.exe Detect utility.
4. BatteryCheck4.exe implementation in accordance with the screen after the start of the prompts.
If you do not want to download and use the battery-testing procedures, you can also select in accordance with the “battery pack artificial judge Guide” (Click here to download) Introduction to determine the relevance of whether you have the possibility of the affected battery pack, battery pack at the same time the Model and serial number. This manual method requires you to battery pack removed from the computer, and in accordance with “battery pack artificial judge Guide” provided by visual information on the battery pack than the corresponding tag information to carry out. Please note that this method may result in inaccurate results. May, based on visual than on the battery pack that should be replaced, but the results of battery testing procedures that do not have to replace the battery pack. If these two identification methods that differ from the conclusions, the results of testing procedures batteries (not visual comparison of the results) are correct. Detect the use of battery-related procedures are a priority to determine the manner in which we recommend.
If you are required to determine the course of any help, please call the Toshiba computer Hotline :800-820-2048 (fixed) or 116-986-2048,021-52564713 (cell phone), connected after the press “4.” Toshiba computer Hotline working hours are Mon-Sun (8:30-17:30) (statutory holidays).
Beijing October 31, according to foreign media reports, the U.S. Consumer Product Safety Commission (Consumer Product Safety Commission) Thursday announced that the laptop had received some reports of overheating, including Hewlett-Packard, Toshiba and Dell notebooks, including manufacturers will recall 100,000 laptop batteries. These battery time for the factory from 2004 to 2006. In addition, the association in China and Acer has also announced to join the ranks of problem battery recall.
Below we introduce the various brands to confirm the battery problem the detailed steps:
Dell:
You can use the following to identify your battery is affected:
1, check whether your battery is affected. If your battery is not listed, you will not be affected.
2, check your specific battery PPID (Dell Parts Parts logo) would be affected. This step required to identify whether your battery is affected. Each model, only a few cells are affected. If the battery belong to the scope of this recall, it will automatically connect to your replacement order form.
Step 1: Does your battery model affected?
Only the following battery models may belong to the scope of this recall:
1K055 C5446 F2100 KD494 W5915 Y1333 K590 C6269 F5132 R331 X5308 Y4500 P474 C6270 GD785 M3006 X5329 Y5466 P922 D2961
H3191 RD857 X5332 OU091 * 2603 D5555 J1524 TD349 X5333 1436 * C5339 D6024 JD616 U5867 X5875 C5340 D6025 JD617 U5882 X5877
These part numbers are as follows will be printed on the back of the battery pack.
[Click to open in a new window]
Step 2: if your specific battery affected by this issue?
To determine whether your battery is affected by this issue, should click here. Web site will help to guide your search and enter the battery identification number back in order to determine whether the battery affected by this issue. If the battery is affected, you’ll automatically be connected to the replacement is scheduled to enter a request or provide you with telephone numbers in order to obtain the location of support services. If the battery is affected by this recall, you’ll be automatically connected to the replacement order. Dell will also offer you to return the affected battery pack to achieve the correct way to dispose of.
Please note that only the affected belong to the battery recall list does not include the laptop itself.
Wait for Dell in the back when the replacement battery pack should not be used by the battery recall. You can give notebook originally provided AC adapter power cord to continue to use the laptop.
Fuel cell air pressurization system specific requirements are: compact size, quality, lightweight, air supply free of oil and gas pollution, low noise, maintain low-cost, low-cost and high hp ev088aa, hp 417066-001 efficiency [3]. Current volumetric air compressor in the fuel cell system widely used, the most typical are screw-type compressor; but its difficult with the turbo-matching, it can not be recycled exhaust energy, achieve further energy saving. Exhaust energy recovery, at present only through the turbine and centrifugal compressor matching to achieve. Centrifugal compressor also has a fast response, long life and the many advantages of high efficiency, is considered the most promising future of one of the hp f4486b, f4486a ways supercharger.
Fuel cell system is currently not sufficient to drive turbine exhaust energy Driven Compressor job, so an auxiliary power source is essential. Ultra-high-speed (about 60000r.min-1) motors can be used as an effective auxiliary power source of one of the hp cgr-b1870ae, bta0302001 options. Honeywell is developing a super high-speed motor auxiliary drive high specific speed centrifugal turbocharger [4]. This makes high-pressure compressor application of fuel cell air pressurization system is more compact in response to speed up. However, the application of ultra-high-speed motor, there are many questions, such as high cost, maintenance complex, the stability of the poor, require special cooling measures, and there is a high-speed rotating shaft handle complicated issues such as load balance, hindering the commercialization of fuel cell engine, which so that the promotion of fuel cell vehicles become a problem [5].
Ordinary high-speed (about 20000r.min-1) motors are ultra-high-speed motor to avoid the above hp pavilion zd7000 battery, hp pp2182d disadvantage. However, if the centrifugal compressor is still more than conventional high-speed design, compression ratio can reach 1.1 ~ 1.2 [6], fuel cell system can not satisfy the demand for the supercharger. Therefore, we must design and development of a new centrifugal compressor to make it in the same rotational speed and flow conditions, the compression ratio substantially improve, that is, design of low specific speed centrifugal compressor. In low-speed conditions than the design of high efficiency, wide operating range of centrifugal compressor is a great challenge, both hp laptop battery at home and abroad rarely have the relevant information for reference.
Vehicle fuel cell with low specific speed centrifugal compressor design - hp laptop battery
Qiu Ling Zheng Zhang Yang Jun ago
(Automotive Engineering Department of Tsinghua University, Beijing 100084)
Abstract: The design of the ordinary hp pavilion dv1000 battery, hp pf723a high-speed (20000r.min-1) motor-driven fuel cell vehicle with low specific speed centrifugal compressor. Summed up the compressor design features and to make use of three-dimensional numerical simulation (CFD) A preliminary study on the compressor impeller internal flow field, the corresponding characteristic curve with the main distribution of aerodynamic parameters. Based on the numerical simulation analysis, the design hp pm579a, hp pavilion dv4000 battery of automotive fuel cell of low specific speed centrifugal compressor with high efficiency and a more broad and flat job characteristics in the design of the impeller speed and 83% of maximum efficiency, the most high-pressure ratio of 1.6, flow range of 0.05 ~ 0.20kg.s-1. Have been designed for low specific speed centrifugal compressor, to meet the automotive fuel cell system for air compressor requirements, while avoiding the use of high specific speed centrifugal compressor required for ultra-high-speed electrical problem brought about.
Key words: fuel hp pavilion ze2000 battery, hp presario m2000 battery cell; centrifugal compressor; Low Specific Speed
CLC number: U27 Document code: A Article ID :1000-0054 (2008) 05-0872-03
Fuel cell vehicles with zero emissions, high efficiency, fast response, etc., are all countries in the world and all major car company to study the hot spots; the core of which is fuel cell technology. Pressurized air is essential for the fuel cell system, its performance has a direct connection. Pressurized fuel cell system than the low-pressure fuel hp presario v2000 battery, hp pavilion dv2000 battery cell system has a higher power density and efficiency, but also to improve the water balance [1-2].
Therefore, the proper use and maintenance of a good hp laptop battery, it is essential.
(1) every 4 to 6 months to check a battery in the battery terminal voltage and internal resistance, if a single hp omnibook xe3 battery terminal voltage is lower than the minimum threshold voltage or the battery internal resistance is greater than 80mΩ should be a timely replacement or a balanced charge.
(2) to avoid over-current charging and over-voltage charging. The former will damage the internal positive and negative battery plate so that the battery dropped; the latter would electrolyte hp hstnn-db02, hp dp390a batteries substantial electrolysis of water, so that the electrolyte concentration increases, resulting in shortened battery life, and even burn.
(3) avoid using fast charger charging, the battery would otherwise in the "instantaneous over-current charging" and "transient over-voltage charging" state, resulting in hp pp2100 battery damage or even decline in the availability of battery power. Should be used with the value stream and value the role of pressure Charger.
(4) to avoid short-circuit discharge or excessive discharge. Otherwise there would be serious damage to the rechargeable compaq presario r3000 battery, hp pavilion zv5000 battery capacity and charge storage capability, and shorten the service life. Battery discharge, it is necessary to timely recharge.
(5) UPS long-term electric power supply in the city state, shall from time to time on UPS power supply for a man-made power outages so that UPS power supply in the inverter mode of operation for some time to activate the battery charge and discharge hp pavilion zv6000 battery capacity, extending the use of Life expectancy.
(6) UPS long-term when not in use, from time to time have to recharge once. Battery charging time interval with the ambient temperature is closely related to the higher temperature, the hstnn-db02 shorter the charging time interval.
(7) The battery should be 30 ℃ 1 O ℃ ambient temperature use. Ambient temperature too high and will shorten their useful life; too low, the release of the electricity will be presario r3000 battery significantly reduced.
(8) UPS in battery-powered state, due to the battery voltage is too low and automatically shutdown, reboot at this time can no longer continue to use to avoid battery damage due to excessive discharge.
(9) UPS is in pavilion zv5000 battery-powered mode, the battery discharge current should not be too small, otherwise it will create rapid shorten battery life and battery internal resistance anomaly increases.
4, UPS's purchase
(1) to confirm the type of UPS needed for financial, securities, telecommunications, transportation and other important industries, should choose performance, safety of online UPS; for Internet users, in addition to consider-line omnibook xe3 battery UPS can also choose online interactive UPS; for home users the option of back-up type UPS.
(2) to determine UPS requirements for UPS power of the power calculation methods are: UPS power = actual power × factor of safety equipment. Among them, hp hstnn-ub02 the safety factor is the large equipment start-up power, usually 1.5.
(3) considering the development of headroom in addition to take into account the actual load, the equipment should also consider the future increase in capacity brought about by the problem, so hp zv5000 battery UPS power should be in the existing load on the basis of a 15% increase in the margin.
(4) select the best choice of brands and after-sales service warranty long, thoughtful and timely after-sales service UPS. In this compaq r3000 battery way, product suppliers can be easily carried out their products and timely maintenance and repair, thus ensuring the user's normal use.
1. In the use of laptop carefully read the user manual before the battery maintenance part of it;
2. When the first charge, you should continuously charge the battery to put 12 hours, and cycle to fully charge and discharge completely 3 times in order to awaken a new battery;
3. If the prolonged use of external power supply, it is best to remove the battery. A lot of friends did not take note of this problem, use an external power supply not remove the battery will not only affect the battery life, but also to allow laptop cooling burden becomes even heavier, shortening the life of laptop;
4. Periodic charge and discharge. Even without the memory effect of the lithium-ion battery There is a certain inertia effect, a long time not to use lithium-ion will lose their activity, required re-activation. Therefore, if a long time (three weeks or longer) do not use a computer or the battery charge and discharge found that shorter time, the battery should be fully discharged before recharging, the general of each month at least one complete charge and discharge times.
5. Recharged when best to switch off the laptop, the battery can completely full of electricity, do not unplug the power half-way in the charge. Shutdown charge than the boot more than 30% charge to shorten the charging time, and can extend the battery life. Best finish in 30 minutes after charging the use of.
6. To prevent exposure to prevent damp to prevent the chemical liquid erosion, avoid contact with the metal battery contacts, such as short-circuit happened happen. Lithium battery charge and discharge the number of generally not more than 800 times, each time electric charge, it would shorten the life span of the first. U.S. proposals to make full use of external power supply, if necessary several times to use half-way Plug Power, and the laptop does not pull out the built-in battery, battery let a lot because each time access to external power supply is equivalent to a battery charge.
Unplug the external power supply when the hp f2019, hp f2019a, hp f2019b battery
Most people in the use of external power supply when the battery removed, only a handful of the use of external power supply when the batteries are placed on top of their brand names are used for several international brands.
In fact, the hp omnibook 6000 battery is removed, the contradictions mainly concentrated in the use of external power supply when the battery is charging up the issue. We should know that the number of battery charge and discharge is directly related to the life of lithium batteries in general set the number of charging and discharging are fixed number of charge cycles only 400-600 times, specially improved products but also 800 times, once for each rechargeable battery to retire a step forward. First view is nothing more than fear of the use of power, the battery will be conducted on the above charge, not only increase the number of charge cycles, but will also cause overcharge. The second view is that the hp f1739a battery is full of electricity on the computer, when using external power supply is not rechargeable.
In fact, these two viewpoints has its right side, but also has the wrong places. Since this is only the views expressed by individual people, not very comprehensive, the author, after investigation, is now a lot of notebook manufacturers have to take into account the vulnerability of the hp omnibook xe battery, and add in their products for protection of battery technology, and therefore the corresponding different brand notebook batteries charging protection technology on different, like some large manufacturers in this regard to do very well, such as: IBM, HP, Toshiba, Compaq, etc.. Consider the most thoughtful of them are IBM, IBM's laptop can detect the battery discharge situation, ThinkPad notebook battery power only in less than 95% of the time will automatically recharge. This battery can play a very good protective effect, at present, many other manufacturers have to follow. So like this battery, you do not need to use when drawing down, because only when the power is lower than 95% of the time it will charge. Nevertheless, such a long time if you are using your computer, or the battery removed to better long-running laptop because of heat generated when the battery will cause a certain degree of harm. However, some other "little brand" laptop hp f2024b, hp f2024a batteries, may not enjoy such treatment, because it has not done inside the battery protection technology. I like to use a certain brand of laptop, if the battery is full of electricity on the top, in the use of external power supply must certainly recharged, the battery storage because there will be wear and tear, it is impossible to achieve 100 percent, and long as it is not 100% , power supply connected to the charge. Each access to external power supply is equivalent to a battery charge, although only a small charge will be the time. Therefore recommended the use of a time when everyone in their own machines in accordance with the circumstances of the case, look in the notebook specification, select the use of external power supply when the hp laptop battery is removed.
New hp laptop battery activation
10 does not require battery charging for several hours to activate the battery activity, in accordance with the normal charge-discharge-activated manner.
Proposed method: According to available information indicates that the hp f4098a, hp f4809a, hp f4812a battery should be activated in the factory was completed, notebook battery factory belt are some power in order to avoid the natural wear and tear brought about by damage to the battery. Should be activated battery protection circuit in the absence of circumstances, the circuit itself can be a lithium battery protection circuit, this circuit is designed in order to avoid over-charging and discharging batteries, general battery is full, the charging indicator goes out when , the battery on the electric charge does not enter, you then plug inserted in the face of the battery to charge what the use? From the battery will be able to see the situation on the battery has no charge, while teaching you a simple method can be judged on the battery has not during the charging, battery charge when the phenomenon will have fever, when the battery is full after an hour (power do not pull the plug), you try the battery again to see if the battery is not hot hot? The results certainly are cold, not because the battery charge-discharge state of course, do not heat. Notebook manufacturers at the factory will be proposed that a new battery for more than 10 hours. This author has the view that, should the notebook manufacturers are taking into account some new users in the new compaq presario 2100 battery when the charge is not completely grasp the skills, simply allow them to charge 10 hours, so this should be the business of expediency.
How to correctly charge
Most people that use automatic shutdown unnecessary re-charge, and do not charge quite arbitrary. Are generally used when the compaq presario 2500 battery charge when the computer prompts necessary to conduct further charge, of course, prompted the timing can be set, the default is to 3%.
The authors suggest ways to approach people with the most are the same. In fact, regardless of the notebook to use nickel-metal hydride or lithium electric hp f2299a, hp f3172a batteries, these batteries are have a memory effect, and nickel-hydrogen batteries have a memory effect is obvious, but the same electric lithium will have memory effect, but its memory effect than Ni-MH small number of them . About Li-electric memory effect is not only irresponsible exaggeration business advertising is completely misleading. Well, now that the battery has a memory effect when charging it should be noted that as far as possible and then run out charge, but do not have to deliberately say to the computer must automatically shut down, so did not use up what was so bad (because the notebook has a rechargeable battery discharge protection, the general notebook automatic shutdown is less than the standard battery discharge protection), but you feel so tired is not it? In fact, less than 3% charge in this manner on the good, there will certainly be the memory effect, compared to natural wear and tear, it should be nothing. As for the view that want to charge on the charge point of view, the author is completely disagree, I have already mentioned the laptop hp pavilion zt1000 battery, whether nickel-metal hydride or lithium electricity, it has a memory effect, so this way if the battery life would be substantially shortened.