Lithium batteries on the correct method of charging

October 13th, 2008 | 1 | 2 Comments »

With the popularity of notebook computers, notebook battery problems will be more and more books are attention to the family, so often asked that question, I now put my own experience and some of the company’s technical staff’s experience, take Share out.

First, whether there is a lithium battery memory effect?

Lithium Inspiron 640m battery memory effect is very small, almost to 0.

Second, if the battery trying to put together do not have to, because of how the deal?

Should be filled up to 90% of the electricity, put plastic wrap in the shade.

Third, for the first time must be sufficient enough to charge you 12 hours?

For those who do not have this early batteries chargers control circuit of the Ni-MH battery model is applicable, but now has a smart charge-discharge control circuit for the notebook battery is a joke, when a notebook computer Dell Y9943 , Dell RC107, the charge current will be automatically cut off , Even if you continue to charge 120 hours, there will not be any change in the state, generally speaking, even if the charge of the slowest machines, 6 hours completely filled, the rest of the “charge” is just a waste of their time. It is time to get the new machines should first get a rechargeable power shine.

Fourth, we know what we have sufficient number of such power?

To give an example, IBM’s AC CESS IBM can see there are a number of battery for laptop life, we can clearly know the time and dell battery charge for the first time the state of health. The other books should also have similar features, we look.

Fifth, it is not so direct batteries do not have to do with AC power?

不. The reason is that lithium-ion Latitude D620 battery inside a relatively long period of time if the rest (the so-called relatively static, that is, without electricity or a small amount of battery power. For a long time generally refers to 6 months or so), will be completely lost the function of electrical energy storage (no matter what you use What methods, such as the so-called big charge big release, and even charge more than 12 hours is not good).

Sixth, the battery life in the end is how much?

To tell you, there is no concept of time constraints, the general life of lithium camera battery easy battery  (Remember, life is) is a charge of around 400-500 times lower than the figure of battery quality definitely a problem.

Seven of the new battery is to be activated

In fact, the battery-activated in the factory should have been completed, the notebook battery factory brought a little of the power is natural in order to avoid wear and tear caused damage to the battery. The battery should be activated in the absence of the protection circuit of manner, with a lithium battery protection circuit itself, the design of the circuit block in order to avoid over-charging and discharging of the battery, battery in a general power, charging indicator light Out of the moment, the battery is not in charge of the state, so this time you then plug the charger plugged into the above is no charge for any significance. We can see that the situation of the battery cell is in charge, there is a simple way to determine whether the battery charge in the state, in charge when the Dell 312-0386, Dell PC764, Dell TD175 will be emitting a certain amount of heat, when the battery is full after an hour (charger Plug Power is not being pulled down), then you touch the battery, this time you will find that the battery is at room temperature in the state, which is at this time because the battery is no longer a state-of-charge, of course, no heat generated.

Eight, the use of an external power supply when the need to unplug the battery

In fact, you have to look forward to using an external power supply is not the time needed to recharge the batteries, rechargeable batteries have a direct bearing on the number of life, under normal circumstances, the number of lithium battery charging and discharging is fixed, the number of general charging only about 500, most No more than 800. All of us to charge a battery electricity, accordingly, there can be a charge to reduce the number of times. But now many notebook manufacturers have to take into account the vulnerability of the ec8080 dell laptop, battery on an increase in protection technology, not satisfied with certain conditions will not be charged. Even so, for a long time when you use an external power supply when the computer is recommended that you unplug the battery because the Latitude D820 battery temperature is also one of the enemy, when used in notebook computers would produce a certain temperature, which is very harmful to the battery. Of course, if you own the battery is not sure if I suggest that you put your battery and then pull down the use of an external power supply, because not all batteries have the protection of the circuit. The other is if you have a computer that can control the power to set the charge of the software (for example, when less than 20% of the electricity or other parameters, you can own the battery charge, but the existence of the software and I have not yet determined whether it), then of course you can not unplug the battery.

Nine, can be calibrated to enhance the capacity of the battery it?

The so-called correction, when the actual capacity of the battery and control circuit record is not the same capacity, on a battery charge and discharge depth of the operation, so that the control circuit record, so that the battery close to the actual situation, this is a true performance of the battery capacity The operation rather than enhance the capacity of the key factors here is the actual capacity of the battery if the battery’s actual capacity than the control circuit in the capacity to a record high, correction can be made to increase the capacity of the battery looks, if the battery’s actual capacity than the control circuits The capacity to a record low, the correction will reduce the capacity of the battery looks, which is many people over the effect of correction of the reasons, keep in mind is correct digital battery top battery , Dell MM165 to show the true capacity, the elimination of battery and control circuit between the Bias, as demonstrated by the capacity will increase or decrease, this is the battery itself, rather than the state of your correction by the decision. Correction is likely because the battery discharge when the depth of injury, but capacity has been falling.

10, the need for regular battery of correction, once a month put the total charge?

The memory effect of a strong Ni-MH battery, which is an essential task, but lithium batteries, the cycle is too frequent, and lithium batteries did not completely eliminate memory effect, but has been greatly reduced memory effect, if you use the battery is Frequently, you should discharge the Dell YD626 to the relatively low (about 10 ~ 15%) rechargeable, but that even if the discharge machines are not open (0 to 1%), belonging to the Li-ion battery for a greater depth of the injury discharge Generally speaking every 2 months to do so once the operation of it. If you use very little battery, so long as every three months the first time this operation can be had.

How to charge lithium batteries

October 9th, 2008 | Uncategorized | 2 Comments »

I believe many of my friends about how lithium laptop battery charge, very distressed, then this note will guide you charge out of the misunderstanding!

First of all, I briefly classification:

Nickel has vested in the memory effect, so one must be clean discharge.
Lithium batteries lacks memory effect, but the charge for the first time, also filled.

Lithium batteries for the “activation”, saying many are:

Time must charge more than 12 hours, repeated three times to do in order to activate the battery. “The first three necessary and sufficient to charge more than 12 hours” significantly from the nickel battery (such as nickel-cadmium and nickel metal hydride) inherited, so this can be said is the beginning of miscommunication. Lithium batteries and nickel battery charge and discharge characteristics of a very big difference, and it is very clear, and the charge had been discharged on lithium batteries, in particular liquid lithium-ion battery causing great harm. According to the charge and therefore the best time and method of charging standards, in particular for not more than 12 hours of super-long charge. Many mobile phone statement on the introduction of the new battery must be recharged more than 12 hours is wrong to say!

In addition, the lithium battery in the phone or battery charger will automatically stop after a charge, there is no electricity nickel charger for 10 hours the so-called “trickle” charge. In other words, if your lithium batteries in full, on the white charger is also sufficient. In addition to the charge on some mobile phones over a certain period of time, if not remove the charger, this time not only to stop charging system, will be the beginning of discharge – charge cycle. This is perhaps the manufacturer has its own purpose, it is clear that on the phone and asus battery / charger is the life span of a negative.

In addition, can not be ignored other aspects of a lithium battery that is not appropriate to have the same discharge! Over the same discharge of lithium batteries is also a negative!

Normal use should start when the charge?

We often see this: because of the number of charging and discharging is limited, so should the cell phone battery power used up as much as possible and then charge. But! This is obviously wrong! Under normal circumstances! You should have a reservation in accordance with the remaining A2 battery  power and then run out of filling the principle of charging (but certainly not to use rechargeable shutdown), if your battery is expected in the first 2 days you can not adhere to the whole day, should start on time Charge! When you need to charge in order to cope with the anticipated upcoming busy communications will lead to an important event, even if there are a lot of battery power over time, then you just charge ahead of time, because you are not really recharging loss of a life cycle ! Run out of battery power and then filling the remainder of the principles does not mean that you go to the extreme. And charging the same length of a widespread view that “as far as possible the cell phone batteries run out of power, it is best to use automatic shutdown.” This is only a matter of fact on nickel batteries, to avoid occurrence of memory effect, unfortunately, it is also spread of lithium batteries on this. It has been too low because the cell phone battery warning appears, do not continue to use the charge has been used in automatic shutdown! The outcome of this case, the phone was in charge of the boot in and there was no response, had to send maintenance. In fact, this is due to the battery as a result of excessive discharge and led to the low voltage that does not have the normal charge of the boot and conditions. Experience has shown that the actual discharge depth of 100% of the end-of-life lithium batteries was 50% (over the years have proved the depth of discharge for more than 99% of the electricity used lithium maintenance of the power to activate only half of the remaining half of the scrapped!

Lithium batteries for mobile phones in the right way:
To sum up, I lithium batteries used in mobile phone charging and discharging of the most important tips are:
1, in accordance with the standards and procedures, charging time, even before the three to do so. Chargers first (line charge) and then plug in the power output of the charger plug in the phone charging port. Some people ask: is a good start charging or charging off then?: Will do. A small number of brands of mobile phones in charge when the shutdown is not for the phone’s A3H battery  back-up (on the motherboard small lithium electricity, for 32.XXX can not remember it! Crystal clock electricity supply) charge, and only in the standby state with direct charge In order to charge the battery back-up!
2, When the phone prompts when electricity is too low! Should start charging as much as possible in a timely manner! Lithium batteries have been in the discharge of the most vulnerable to damage! !
3, lithium batteries do not need to activate the special method, in a normal cell phone use in lithium batteries would be natural to activate. If you insist on spreading the use of “three times before the 12-hour long activation charge” approach, in fact there will not be the effect. In general, according to the size of the M2 battery  capacity, charge time in 2 – 4 hours. Therefore! All the pursuit of super-long 12-hour rechargeable lithium battery and cell phone used to automatically shut down, is wrong, we must not blind!

Notebook computer maintenance lithium batteries used to share skills

September 25th, 2008 | 1 | 2 Comments »

The activation of the lithium laptop battery (charging curve is correct) for the first time in the general use, not to place a long time, or that the frequent charge that is used for some time, a method that is full charge and discharge, after the batteries that will be able to use that Filling only in use for a long time before the need to re-re-re-charge and discharge fully corrected.
Lithium batteries do not have time extraordinary charge to activate, you can not do, there have been charging circuit protection, the plug will be of no avail.

Finally, the lithium hp laptop ecprice life mainly in charge and discharge cycles, the cycle is an absolute concept, for example, if you used the last 30% of the electricity, is full of electricity, in the future, they use 70% of the electricity, and full of electricity, the Is just a charge cycle, rather than two, so those who like to make use of rechargeable batteries of the players together, you own it in fact accelerated the end of battery life.

Some of the sources of misunderstanding:

Every time a rechargeable battery exhausted from the age-old from the NICD batteries, nickel-cadmium batteries that have memory effect, if clinging to make electricity, sony battery with the use of the increase in the number of electricity and has shown less and less of the state .

Later, the NIMH battery, fact, has no clear memory effect, but still need to complete the charging and discharging to maintain its normal power consumption shows that this is some of Japan to provide nickel-metal hydride charger refresh function of the principle.

Lithium batteries and there was virtually no memory effect, of course, long after the use of charge or curve will be slightly inaccurate, Apple provides a simple ical prompt you from time to time for battery charging and discharging for correction, but do not have a high frequency.

On the activation of the lithium new laptop digital batteries factory just need to use a number in order to achieve the best condition, this is true, but the use of more than a dozen hours of the activation is not necessary (and meaningless) is now charging circuits are taken into account User-friendly, full of batteries will automatically cut off the charging circuit, so that you can not sleep at ease, this time could not plug in the power of fact, there is no difference.

Turning to charge more than a dozen hours of habit or from the ancient NICD batteries, such as the slow start filling model, the original battery charging circuit design behind the general in order to maintain the normal temperature of the digital top battery to prevent damage, Use a small charge current slow manner, and this circuit under normal circumstances do not have the power to determine precise function, so users are recommended such a charge 14-16 hours to see, the error is generally in two or three hours If the charge flow is too large, too charge of the battery will cause serious harm.

Later, nimh for now and rechargeable lithium battery of fast circuit, has been a very good power detection, you can use the pulse-fast high-current charge, and also to maintain the home site  in the normal temperature range, and to close Full capacity soon, in order to prevent the charge-off, the circuit from the high current pulse is converted to a gradual narrowing of the trickle charge, so that even if the full power detect some deviation, the more close to full power due to the smaller the current, at the last moment Charge current has been close to 0, no damage to the battery, which is why lithium batteries that 80% of the pre-charge 1 hour to complete, and full of the last 20% of the electricity it 4 hours.

The correct phone battery charging and maintenance methods

September 23rd, 2008 | Uncategorized | 2 Comments »

3. Charging, lithium batteries do not need to discharge, can not discharge, the current production of lithium battery charger is not the function of discharge if the charge can adjust the speed, we proposed charging as much as possible in order to slow Chong Chongdian to reduce the fast charge Way; whether slow or fast and sufficient time should not charge more than 24 hours. If the laptop battery is likely to be a long time because of the enormous power of the electronic flow and burn batteries.

4. There are a lot of users to charge a mobile phone when driving, in charge of the process, a cell phone because of the use of discharge from outside, because the battery charger and power supply inside, is likely to lead to disorder voltage of the cell phone circuit boards Heat will, if the calls would have to return the current moment, the phone’s internal parts damage.

5. The battery life determined by the number of repeated charge-discharge lithium battery charge and discharge in a row could be about 500 or so, after the battery’s performance will be greatly reduced, should be avoided as far as possible within the remaining battery power and then charge the full release End, or charge with the increase in the number of , Battery performance will gradually weaken, the ibm laptop battery standby time is hard not to have dropped.

6. Do not expose the battery at a high temperature or cold, like a dog day weather, cell phones should not be placed under the sun, stood in the scorching sun exposure; or get air-conditioned rooms, air-conditioning on the direct blow. When the charge, the current product back to the battery a little fever is normal.

7. If the cell phone not to place too long, to the best cell phone battery to the maintenance department to apply for activation of a deal, their could be a constant voltage direct current, voltage adjustment for the 5 ~ 6V, current 500 ~ 600mA reverse ThinkPad T60 battery connector . Note that the liberalization of touch, up to be repeated three times, after such treatment, re-use original charger “adjustment” charge.

8. The charge is not a good time longer, not for the protection of the circuit full battery charge should be stopped immediately, otherwise they will affect the performance of heat or overheating. Theoretical calculation of battery charging time of the method are as follows: The battery charger power divided by the output current can, for example: a battery 800MAH for electricity, for example, the charger output current 500MA for less time on the same charge 800MAH/500MA = 1.6 hours, of course, this is only theory is full of power time, when the Chargers showed that after the completion of the charge, but also the best battery for about half an hour or so up the power of time. Lithium-ion battery charger must be selected precincts, or may fail to saturation, the impact on its performance.

The correct phone battery charging and maintenance methods

September 23rd, 2008 | Uncategorized | 3 Comments »

(3) to the 600mAh battery, for example, set up to current 0.01C (that is, 6mA), it’s not time to 1C charge more than 150 minutes, then set up to current 0.001C (that is, 0.6mA), it may be time for the charge — 10 hours because of the precision instruments, has been unable to obtain accurate, but 0.001C from 0.01C to be calculated only by the capacity of the 1.7mAh, in order to make more use of more than 7 hours in exchange for just three thousandths of Is not less than the capacity of any practical significance.
Moreover, there are other ways of charging, such as pulse charging methods to make lithium-ion laptop battery 4.2V to reach the limit voltage, there is no deadline for it to determine the smallest current stage, after 150 minutes in general it is a full 100% charge. Are a number of mobile phone Pulse charging modes.
Some people have been using a mobile phone showed full charge, then charge for Wall Décor & Hangings phone to confirm the full extent of filling, the test in a slapdash way.
First of all, Wall Décor & Hangings show the green light detection is not really sufficient or not enough of a basis.
★ ★ testing lithium-ion rechargeable battery is full the only way to the ultimate test is not in charge (or discharge) when the lithium-ion battery voltage.
The so-called current phase of the constant pressure to reduce its real aim is to gradually reduce the resistance on the battery charge current arising as a result of the additional voltage, current as small as 0.01C, such as 6mA, with the battery by the current resistance (typically 200 Doses of Europe) is only 1mV, that this time the voltage is no current state of the battery voltage.
Second, the phone does not necessarily mean that the voltage of the Wall Décor & Hangings voltage, that the phone’s battery to full charge of the Wall Décor & Hangings, Wall Décor & Hangings do not have that full charge, but continue to charge.

4. Rechargeable batteries are the best you
There is a saying that the use of rechargeable batteries properly, in a certain period of the cycle scope of the best, is the largest capacity. This points to the case, sealed nickel metal hydride batteries and nickel-cadmium batteries, if used properly (such as regular maintenance to prevent the memory effect and have accumulated), usually 100 to 200 cycles Department reached its maximum capacity, such as The factory with a capacity of 1000mAh Ni-MH ibm laptop battery with 120 cycles, its capacity is likely to reach 1100mAh. Almost all of Japan Ni-MH battery manufacturer’s technical specifications described in the book nickel-based batteries cycle characteristics on the map and I can see such a description.
★ nickel-based batteries have the best general in the 100 to 200 cycles between its maximum capacity
The liquid lithium-ion batteries, but there is no such a cycle hump capacity, lithium-ion batteries from the factory to the final end-of-life battery, the capacity of its performance is to use a little time. I do lithium-ion batteries on the performance of the cycle when there has never seen signs of recovery capacity.
★ lithium-ion battery is no best.
It is worth mentioning that the lithium-ion battery is more vulnerable to changes in ambient temperature and the performance of different properties, in 25 to 40 degree temperature will show their best performance, and low or high temperature, his performance greatly on the . You have to make lithium-ion battery fully demonstrated its capacity must be careful attention to the use of the environment, the prevention of high-temperature phenomena, such as car phone on the first stage, directly at the sun can easily make more than 60 degrees, North of the user’s battery standby time, the same network, the user is no longer in the South.

5. Is really the greater the charge current, charge and the sooner you
The current charge of nickel-based batteries, can be said that while the corresponding lithium-ion battery, this is not entirely correct.
★ ★ for lithium-ion rechargeable ThinkPad T42 battery, to a certain range of current (1.5C ~ 0.5C), to improve current methods of charging voltage current current value, not to shorten the full lithium-ion rechargeable battery.

The following are transferred to the maintenance of the batteries:

We know that cell phones are a source of electrical energy, which is the driving force for cell phones, there is no battery power supply, cell phone is a piece of scrap iron, a high-capacity high-performance batteries, not only to the phone’s range for a long time, but also to protect The phone circuit, making phone for a long time to work efficiently, while likely to cause unexpected damage to the emergence of mobile phones. And our players, the battery performance in the factory, had been determined, the size of its power, performance, good or bad, are determined by the ThinkPad T60 battery itself, in this regard we can not change the man-made, but That does not mean that we get the battery after it is not so. Cell phones are used by the lithium-ion rechargeable batteries, used in the run out of storage capacity, the need to be supplementary power re-charging. You do not look down on the link in charge, a good battery charger and charge the correct way to maintain a long battery standby time, but also to extend battery life. Step further said that mobile phones can also play a role in protection. On how to approach the charge, often in the forum, players will be asked, after a period of time to actually own and use for reference, I summed up the following points:

1. Lithium battery factory in general, manufacturers activated to deal with, and pre-charging, the batteries have more than electricity, to buy a new cell phone battery is a lithium-ion, then the first 3 to 5 times as the adjustment period recharged, should be sufficient for more than 14 hours To ensure that the full activation of the lithium-ion activity. Lithium-ion battery memory effect did not, but there is a strong inert, should be fully activated in order to guarantee the future be able to use to achieve the best performance. The first charge on this issue, I also consulted with Samsung’s technical staff has given me the answer is that Samsung’s original battery in the factory had already done a full activation of the deal, then do not have to charge long way to activate Lithium-ion activity, for the first time as long as the ThinkPad T20 battery charge, while the electricity can be filled after use. I would like to Samsung’s technical staff should be able to claim convincing.

2. Some automated intelligent rapid charger when the lights change direction, the fact that only 90 percent full. Charger will automatically slow to change with full battery charge will be. Do not immediately put the charger to cut off power, even the best batteries to power up for some time, and then use the battery is full, or else they will reduce the use of the time.

Cell phone use

September 8th, 2008 | Uncategorized | 2 Comments »

Lithium-ion laptop battery chemistry of the lively and intense reaction, therefore, use every day to prevent rain, snow, sweat, and other fluid Submerged, once down into the water to immediately overhaul Otherwise, it will cause combustion. These problems are mobile phone users to strict attention. The attention of many similar issues, in order to correctly use the security phone batteries, but also note the following:

Do not use damaged cells, not arbitrary demolition and conversion of the phone.

Thunderstorm days to avoid using mobile phones outdoors.

Minimize the single-call time, do not call in the charged state, the use of headsets to answer the call.

Do not linked to the phone in the front and keep the phone on the bag.

Do not have to deliberately ensure that each time, the End-rechargeable, but over time, the best to do a complete sony battery charge and discharge, to test the control circuits and batteries that power the battery statistics. Sony Ericsson official said, related products, mobile phone batteries to adjust to the best working conditions, the first to complete the full charge is very important, because the lithium-ion battery Although there is no memory effect, but it has a strong sexual Sui , The only fully activated in order to achieve the best condition. Secondly, the use of cell phones in the process, not the battery directly exposed to very high or very low temperature environment, not the best environment temperature over 60 degrees, this way we can ensure the continued stability of the battery. Finally, in the batteries when we must pay attention to the use of the original Sony Ericsson brand batteries and chargers, and as far as 5 to 45 degrees Celsius temperatures to charge the battery. By taking these measures, we can effectively improve the efficiency in the use of batteries, the battery adjusted to the best working conditions.

Battery life from the point of view, less than 10 percent after the electricity charge is the best, which is conducive to extend PCGA-BP2T life.

Prolonged storage of mobile phone batteries, to note the following:

1. Batteries can not be placed in liquid or exposed to high humidity environment.

2. Do not expose the battery in very high or very low temperature environment.

3. Can not throw or bending the phone PCGA-BP2V.

4. Do not try to demolish the phone battery.

Phone battery maintenance

September 5th, 2008 | Uncategorized | 2 Comments »

Phone battery charging and maintenance should be the first time began. The first charge after the laptop battery life of the great impact, the general requirements for the first time a charging time of about 12 hours (such as an electric battery should be exhausted), but make sure to not more than 24 hours, or else they might charge the batteries bad. After the charge requires each spent rechargeable, each about 5-6 hours. It should be noted that most do not use half of the battery recharging the batteries have been used or suddenly stop using a few months. The standard battery life for a year, using every available one year after the first two months of release, and extended battery life to have a good effect, but the new batteries need not charge each time after discharge. Finally, please note the battery not to oil spills continue to use, otherwise the loss outweigh the gain. 1, in order to extend battery life, hp battery charging time normally do not charge more than the necessary period (5-7 hours). 2, only when manufacturers Original purchase of the charger. 3, no contact with the battery of metal accessories or contact with oil pollution, the attention of moisture. 4, batteries not immersed in water or thrown in the fire. 5, the battery not to put in low-temperature heat or next to objects, such as refrigerators and stoves. 6, dealing with the battery, use of special facilities. 7, for battery for, recognized only by telephone F2024B type. 8, the memory effect of a battery, the use of electricity each should be finished, recharge. Otherwise, the battery will appear memory effect, greatly reducing battery life. 9, battery life is based on charge-cycle terms, and therefore, adequate electricity, exhausted, to maximize battery life.

Standard-setting should be based independent innovation

August 21st, 2008 | Uncategorized | 1 Comment »

Lithium-ion battery safety and food safety should be the same, the relevant ministries of my country and the importance of local government, the Government should actively promote the development of safety standards and be effectively implemented, can not pass safety standards for products, it is necessary to strictly curb market, which is Lithium-ion laptop battery safety control and reduce the accident, one way.

As lithium-ion battery safety mechanism is very complicated, especially after the battery recycling through changes in the status of the safety of the impact of a more complex, the lithium-ion battery safety awareness and standard-setting and the scientific validity can be a progressive development Process, and should also give full consideration to external control technology development and application effectiveness. Su Kim Yeon told reporters that the safety standards for lithium-ion sony vaio battery is a highly technical work, should make full use of battery Organization for Standardization and from the battery industry, users, electronic control and other areas of professional and technical personnel and professionals involved in the standardization process, Including the necessary experimental verification work. Lishen companies have been actively involved in formulating and revising the standard battery, drafting or participated in the drafting of GB18278, IEEE1725, IEEE1625, such as lithium-ion battery standards. December last year, the company sent people to participate in the organization of the Ministry of Information Industry in Shenzhen at the “lithium-ion battery safety standards workshop,” and on the battery recall and battery safety standards done a keynote speech on the issue.

Chinese Electronics Standardization Institute senior engineer SUN Chuan-hao said that the current lithium-ion battery broadly divided into energy-and power-two categories of products, two categories of products in materials, design and other aspects of the structure there are certain differences in the same premise of security, The test methods and standards requirements may be different. Usually by a former portable battery products, including mobile phones, notebook computers, digital cameras and camcorders using lithium-ion battery, power tools, electric bicycles and electric vehicles using lithium-ion battery Kegui Wei after a class of products, he suggested Were related departments should develop portable lithium-ion batteries and power-safety standards for lithium-ion  VGP-BPS3 safety standards.

During the interview, the industry have said that the development of lithium-ion VGP-BPS5 standards should be based on independent innovation, but to work behind closed doors does not mean that, should pay attention to absorb and adopt the IEC, IEEE, UL and other international standards.

Rechargeable batteries big Echuan

August 21st, 2008 | Uncategorized | 3 Comments »

Capacity

Ezhuan 1: two nominal capacity of the same (for example, 800 mAh) laptop battery, if an actual measured capacity of 860 mAh, another for 805 mAh, then on the 860 mAH than 805 mAh good.

Truth: Generally speaking, the different models (of different size) of the lithium-ion battery, the capacity to use the higher the longer the time. Set aside if the volume and weight and other factors, of course, the higher the better capacity. But for the two nominal capacity of the same (for example, on the cases) may not be the sony vaio battery. Because the reality that high-capacity battery, it is likely that in the electrode material added to increase the initial capacity of the material, used to reduce the stability of the electrode material. The results in the loop on the performance of the scores, high capacity That rapid decay, while the capacity is still low strength. Many manufacturers in order to cut costs and expand sales, often used such means to produce high-capacity battery. Users will find the use of six months after the much shorter working hours. In short, improve the capacity of the price cycle life is sacrifice, not battery manufacturers from top to bottom of the article, it is impossible for increased battery capacity

The preservation of battery

Ezhuan2: If we do not use rechargeable batteries, should shine of the power to save.

Truth: Actually, not only the above-mentioned rumours, in the end of the lithium-ion VGP-BPL2 or shine with the preservation of the preservation certainly make many people feel confused » The answer to this question from the congenital defect about, that is, “the aging effect.” Lithium-ion batteries in storage after a period of time, if not for recycling, its capacity will be a permanent part of the loss, it is because the lithium-ion batteries are negative materials from the factory began their journey failure. Different temperature and saturation level of the rate of aging is different, specific rate that shown in the table below.

Thus, the higher the storage temperature, the more full battery charge, the greater the rate of capacity. So for a lithium-ion VGP-BPS3 stored for a long time, the user should be in control of 40 percent of electricity and stored in 15 ℃ even lower temperatures can be. As for those nickel-metal hydride and nickel cadmium batteries that do not exist, “aging” effect, after the long-term storage of just a few full charge and discharge to restore its original capacity.

, A follow-up charge

Ezhuan3: batteries, a power-sufficient renewable after 12 hours, this is conducive to enhancing the saturation of the battery.

The truth: Under normal circumstances, a qualified quality Zuochong charger will recharge automatically shut down after the completion of charging circuit, not current, even if the VGP-BPS5 in place 10 hours Zuochong is of no avail. Currently the vast majority of mobile phone chargers are the sampling design. So when the green indicator light, directly to the battery had to use.

Fake and shoddy battery characteristics and determine

August 20th, 2008 | Uncategorized | 2 Comments »

Because of the interest-driven, the market has a lot of fake and shoddy laptop battery, with a very low price fool users to reap huge profits. These cells have the characteristics:
Look worse: such batteries from the appearance of speaking poor sense of quality, into the phone will not meet its printing text also poor.
Capacity is low: battery defective batteries or poor-quality batteries from assembly, the actual capacity of the battery less than a nominal capacity of the user’s mobile phone short standby time, the user can determine the one hand this.
Short life: The compaq laptop battery is used by the battery assembly into a new form, the appearance looks relatively new, but in fact the internal batteries have been used for a period of time, such a very short battery life, users need to use after a period of time can determine out .
Since the discharge: batteries because of their poor self-discharge more likely to be shelved several days to six months not to use, and then into their cell phones have not boot.
Security worse: some underground factories to reduce costs, at the expense of the safety of batteries, will be removed within the protection circuit, such batteries in the external short circuit or, under certain conditions prone to danger or damage the battery. Judgement is its battery is negative output short-circuit some time to see whether the battery will smoke or heat, remove the short-circuit, the EVO N400c battery should be able to resume normal function, because this experiment is dangerous, not recommended for such users试验.
Lack of functional: the function of certain cell phone manufacturer circuit counterfeiters can not imitate, not to join the battery in the phone’s battery does not have some features. PHILIPS 929,939 as the original batteries in charge control circuit, but some counterfeit batteries were not, resulting in its rechargeable battery on the phone when the police.
The production of poor: As of fake and shoddy batteries are many underground factories producing, they lack the necessary EVO N410c battery assembly of many devices (such as spot welding, ultrasonic welding machine, Mounter, battery tester, etc.), in the course of processing Often ugly, poor battery internal process, this can be seen to open the battery cover.
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