What's the reason that causes battery with no voltage or low voltage? How to avoid this problem

1. Reason:

a.No voltage.

b.External shot circuit or overcharge, anti-charge

c.Cells expansion and short circuit caused by direct anode contact and continuous high efficiency electric current overcharging.

2. Solutions:

a.Check if the battery is without voltage or electric current.

b.Avoid short circuit.

c.Avoid collision and pressure among batteries.

d.Charge the battery after it automatically powers off , then full charge the battery.

My new laptop / camcorder battery is not working at all! What's up?

New batteries are shipped in a discharged condition and must be charged before use. We generally recommend an overnight charge (approximately twelve hours) for Ni-Cd batteries and a 24 hour charge for Nickel Metal Hydride. Refer to your computer manual for charging instructions. Rechargeable batteries should be cycled - fully charged and then fully discharged - 2 to 4 times initially to allow them to reach their full capacity. (Note: it is perfectly normal for a battery to become warm to the touch during charging and discharging).

what's the "memory effect" of battery? and how to clean out it?

Ni-cd batteries, and to a lesser extent Ni-MH batteries, suffer from what's called the "memory effect".

What this means is that if a battery is repeatedly only partially discharged before recharging,

the battery "forgets" that it has the capacity to further discharge all the way down.

To illustrate: If you, on a regular basis, fully charge your battery and then use

only 50% of its capacity before the next recharge, eventually the battery will become

unaware of its extra 50% capacity which has remained unused.

The battery will remain functional, but only at 50% of its original capacity.

The way to avoid the dreaded "memory effect" is to fully cycle (fully charge and

then fully discharge) the battery at least once every two to three weeks. Batteries

can be discharged by unplugging the device's AC adapter and letting the device

run on the battery until it ceases to function. This will insure your battery remains healthy.

Mh and Li-Ion batteries do not suffer the memory effect.

What is the difference between Ni-Cd,Ni-MH,and Li-Ion:

Li-ion (Lithium Ion)

This is one of the newest cell types available. It is also the lightest battery type currently available on a commercial basis and can provide more power than the other main cell types. there are no known problems of memory effect with this battery type and it is the easiest battery type to care for. the downside of this battery is that it has the highest engineering costs and therefore the price is usually considerably higher than other cell types.

Ni-MH (Nickel Metal Hydride)

This cell type is the most common cell type currently available for laptop computers, (although Li-ion is rapidly becoming the most popular) this battery type is relatively cheap to manufacture and therefore tends to be cheaper than Li-ion. this cell type is prone to memory effect,so it is important to take good care of your Ni-MH battery to ensure that you obtain the best runtimes.

Ni-Cd (Nickel Cadmium)

This is one of the oldest cell types and is generally only found in older laptops. the main pro for this cell type is its ability to handle higher loads, and therefore is more commonly found in portable power tools or devices that need a lot of power to work efficiently. the main downside of this cell type is that it is notorious for suffering from memory effect so good care must be taken with this battery type to ensure most effective use of battery.

To better use your battery, please take care of the precautions listed below:

1. Do not modify or disassemble it.
2. Do not incinerate or expose battery to excessive heat, which may result in an exposure.
3. Do not expose battery to water or other moist/wet substances.
4. Avoid piercing, hitting, crushing or any abuse use of the battery.
5. Do not forget to take away your battery from the device if you will not use it for a long time.
6. Avoid short circuit of the terminals by keeping your battery pack away from metal objects such as necklaces or hairpins.

How can I maximize battery performance?

Breaking In New Batteries - new batteries come in a discharged condition and must be fully charged before use. It is recommended that you fully charge and discharge your new battery two to four times to allow it to reach its maximum rated capacity.

Keep Your Batteries Clean -it's a good idea to clean dirty battery contacts with a cotton swab and alcohol. This helps maintain a good connection between the battery and your laptop.

Exercise Your Battery -Do not leave your battery dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a battery has not been used for a long period of time, perform the new battery break in procedure described above.

Battery Storage -If you do not plan on using the battery for a month or more, we recommend storing in a clean, dry, cool place away from heat and metal objects.

Laptop lithium battery tips:

We often set our sights on price, weight, figure and configuration when we purchase a new laptop. Battery is often ignored. In fact, battery and integral performance of a laptop are inseparable. Battery is as important as CPU, mainboard, hard disk etc. We list the tips and guideline below. Let's get the most of your lithium laptop batteries.

A. Materials

Batteries in laptops and notebooks are principally made using either Nickel Cadmium (Ni-Cd), Nickel Metal Hydride (Ni-MH) or Lithium Ion (Li-ion) technologies.

Each type of rechargeable battery technology has its own unique characteristics: Ni-Cd is the earliest battery used in laptop. It has many defects because at the time there wasn't enough technology. It is bulky, heavy. It also has low capacity, short life and memory effect. But now we often use Ni-MH and Li-ion battery. Lithium battery has its strong suit such as small in size, light weight, high capacity, low memory effect, short charge time etc.

People has the wrong concept that Lithium batteries do not have memory effect because they are misled by irresponsible commericals.

Lithium batteries also have memory effect though it is low and inobvious. There are two kinds of lithium battery: li-battery and li-ion battery.

What's different between these two lithium batteries and How to distinguish them?

Li-battery had existed long time before. It is not safe enough and often burns and bursts. Then people have improved and developed li-ion battery.

This technology controlled activity of lithium element and made lithium battery to be more safe, efficient and convenient. As a result Li-battery was withdrawn from the market. The way to distinguish them is to recognize from the marking. Lithium battery used in laptops and mobile phones at present is actually Li-ion battery.

What's Ni-MH battery?

Ni-MH battery is the most environmentally friendly battery. The country that attaches importance to environment often uses this kind of battery because it is easy to recall and reuse. But Ni-MH battery has its downsides compared with Li-ion battery such as long charging time, heaviness, low capacity and memory effect. Although it suffers less from memory effect than Ni-Cd battery, it needs to be completely discharged before being charged, not only for laptop battery, but also for mobile phone battery.

Lithium-ion battery also has its own imperfections like high cost and less discharge/charge cycles. A Lithium-ion battery provides 400-600 discharge/charge cycles, 800 cycles by special improvement. Based on the calculation that the battery is charged once per day, the best lithium battery can end up its life after around over 2 years. While a Ni-MH battery provides more than 700 discharge/charge cycles, high quality Ni-MH can even provides 1200 cycles. With this comparison, Ni-MH battery's life is longer than lithium-ion battery. Therefore, we can say there are no perfect laptop batteries at present.

B. Production Origin

At the very beginning, Laptop battery mainly comes from Japan, Korea, Chinese mainland and Taiwan. Japan is the main place because most of laptop cells are produced by Japanese manufacturers such as Toshiba, Panasonic, Sanyo, NEC etc. Although there are many brands of laptop and many kinds of batteries, cells are from these Japanese brands. Manufacturing the cells has created a lot of profits for Japanese electronic companies. Most Chinese mainland and Taiwan's manufacturers produce with materials supplied by clients. And the cells used are made in Japan.

C. Weight, Figure and Capacity

Most of laptop batteries are quadrate. Only a small number of them for super-slim laptops are columniform. The weight of battery is dependent upon its material and the laptop the battery is used for. A NiMH battery that has the same capacity and figure with a Lithium battery will weigh twice the lithium battery.

The capacity is measured by mAh which has a direct relationship with battery run-time. Besides, the run-time is also heavily dependent upon the power saving technology of the equipment. When selecting a laptop, it is advisable to consider what warranties the manufacturers can offer for the battery.

1. How to charge your new replacement laptop battery properly?

Some laptops with lithium-ion batteries use technology of SBS brightness battery system, which can measure battery's life accurately. Although lithium-ion battery has many merits, we still need to master some professional charge method to prolong battery's life and made it maintain long time power supply. Your new laptop battery requires three complete charge/discharge cycles before use and achieving maximum capacity. It means the battery would have to be charged fully and then be discharged fully. Repeat it three times before starting to use the battery. By this way, battery's internal chemical materials can be activated and its internal chemical reaction can come into the optimal state. After the activation, the battery can be charged and used freely. But the battery will have to be discharged completely once a month so that the battery activity can be released by such deep discharge and battery life can be maintained. If battery is idle for over 3 months, it is also necessary to conduct 3 cycles of complete charge and dsicharge to ensure that the battery is activated. You must control the charge time commendably when you use a Ni-MH battery. Please remember not to overcharge continually, or it will shorten the battery's life. Furthermore, Ni-MH battery should be fully discharged before being charged. It also needs three complete discharge/ charge cycles before starting to use it. Most users are used to using Alternating Current instead of a battery for power supply when they use laptops. Actually the battery needs to be used at least once or twice per month to release the battery power completely. Then fully charge the battery with AC power once. Please remember that it is always good for rechargeable batteries to use up the battery power before giving them a full charge. Because the li-ion battery used by laptop has its own laziness and would lose its activeness when being idle for long time. It needs to be reactivated. It is suggested to take out the battery from laptop when it uses AC power supply indoor to avoid having the battery get charged frequently. It is also suggested to shut down the laptop so that battery can be fully charged. Do not remove the AC power during charge. In addition, the power of battery can easily be used up and most laptops have only one battery. For this reason, some manufacturers have developed a fast charge feature that enables the battery to replenish its power at the fastest pace after power draining up. One hour charge can give the battery back over 90% of its power. Why is not 100%? Because frequent fast 100% charge will greatly shorten the battery life. In order to prolong battery life, fast charge will have to be switched to slow charge(namely Constant Voltage charging method) when battery reaches 90% charge.

For a common laptop, the best charge method is to turn off the laptop when its battery is being charged. The charge time will be shortened by 30% by this method.

2. Laptop Battery Maintenance

1) Remove unused PCMCIA Cards from your notebook to extend battery run-time when no external power source is connected.

2) Battery works the best in a condition of 20-30 temperature. It may shorten battery's run time if heightening or lowering the temperature.

3) It is a wrong concept that taking out the battery from laptop when it has stable power supply in order to prolong the battery life. Because when battery is fully charged, its charging circuit will close automatically. Overcharge usually will not happen.

4) It is recommended to conduct a complete charge and discarge cycle for the battery every three months on average.

5) Don't use battery if it is not necessary because every charge/discharge time may shorten battery's life.

6) Try not to charge battery before power is used up and not to charge the battery too long. This is the best way to avoid memory effect for both Lithuim and Ni-MH batteries. Lithium-ion battery has memory effect too though it is not as obvious as Ni-MH battery.

3. Battery Usage Tips

1) Don't let liquid immerge into battery. Once liquid gets into battery, stop using the battery. Use a piece of cloth to wipe it up and trasnfer it to places with good ventalation for dry-up. Or it will cause danger.

2) Don't try to open or assemble battery (except you are an expert). Because there are many circuits in it, rough work may destroy the circuits.

3) Avoid exposing the battery to extreme heat and cold, moisture or water, chemistry liquid. Don't let it in contact with metal.

4) When having the lapto ly on surfaces of such soft objects as bed, sofa, carpet, remember not to weaken the laptop's ability to release heat.

5) when charging, shutting down the computer will yield better results. But it is not mandatory. It will be good for the battery if it is not used until 30 minutes after charging.

6) If battery is used to supply power, it is advised to use up the power before recharging.

7) It is normal for the battery to get warm when it is in use because battery produces heat the process of charging or discharging converts its energy. Besides, notebook will also transfer some heat to battery when it is operating. If it is getting too hot, there may be a problem with the device and qualified personnel should check it.

4. Questions about Laptop Battery

1) How to remedy the battery that has gone wrong?

If the battery has already had problems like the run time obviously being shortened and serious memory effect, how can we remedy it? Try below methods:

Firstly, enter into BIOS and shut the electrical power manager. Because many laptops have electricity saving mode, over-low voltage may lead to laptop shutting down automatically. Then turn on the laptop again. Press PAUSE before getting into WINDOWS. Let it stay in WINDOWS menu until electric power getting used-up which will cause the laptop to shut down. Repeat this process three times before recharging it. The above method is usually very effective. If your battery does not change even with above method, then there is nothing can be done.

2) Why there is no need for us to remove the battery when we use external electrical power?

There is chip on the main board to prevent overcharge. When it has been charged up to 100%, charging control chip(PET) will stop the charging. Don't worry about any damage to the battery.

3) How to store battery when it is not in use for a long time? It should be fully charged or discharged?

Storing the batteries at full discharge for long period of time will have the battery cells lose their activity, even have the control circuit protection self-closed which resulted in its inability to be re-used. Storing the batteries at full charge will have battery safety jeopardized. The best way to store the batteries is to keep the batteries at cool and dry places at optimal temperature of about 20 degrees with only about 50% capacity remained. Off course, getting the battery out every month for use is the best way to keep the battery at excellent storage state and battery power free from flowing away completely which could damage the battery.

4) How shall we prolong the laptop battery run-time?

A: Turn down the screen brightness of your laptop.

B: Make good use of the stand-by, dormancy function etc. If it not in use for a long time, stand-by or dormancy no only saves electric power but also prolongs laptop life.

C.When battery is in use, try to shut down wirelessness, blueteeth and infrared port.In the meantime, try to remove the unneccessary external devices

and avoid turning on large 3D programs and games so as to cut down on unneccessary power consumption.

5) How can you use your new battery?

Your new battery must be completely charged and discharged before use. The long period of transition from factory to customers during which the idleness of battery may passivate its electrode material. So upon initial use the battery may require three complete charge/discharge cycles in order to avoid passivation and activate the battery's performance and maximize it's capacity. Meanwhile, As there is the data transmission agreement port between laptop battery and laptop, it takes 2-3 charge and discharge cycles before the battery's actual capacity percentage is in sync with the percentage displayed by laptop. Cycling approach: Put the battery into laptop and charge/discharge it until the laptop shutting down. Then charge the battery again. Charge time must exceed 12 hours. Repeat three times.

6) Do you need to remove the battery when you use external power ?

It is actually dependant on whether you need to use the external power for charging your battery. Battery's charge cyles have a direct relationship with its life. Usually there are only 500 cycles of discharge and dicharge for the battery. Every time, we charge the battery, the number of chargeable cycles is reduced by one. However, currently a lot of notebook manufactuers

have taken the battery's vulnerability into consideration by improving the battery protection technology so that the battery will not get charged if it does not meet certain conditions. Even though, it is advsiable to remove the battery when exeternal power is in place for long time because high temperature is always not good for battery. Laptop can release a certain amout of heat when in operation, thus will cause damage to battery.

7) Shall we fully use up the power of battery before recharging it?

For people who use li-ion batteries, the biggest merit is nearly no memory effect. It is thus not necessary to wait until power is completely used up before recharging. As for Ni-MH and Ni-CD batteries, it is better to recharge when no power is left, especially for Ni-CD batteries whose memory effect is very obvious. Therefore, we suggest for all users, especially for laptop users, to preodically use up the battery power before recharging the battery.

8) Why does a rechargeable battery's life get short when charge cycles get less?

All rechargeable batteries are made with chemical materials. The chemistry changes to electric power. Simply speaking, the reaction is reversible. it can be charged and discharged. But these chemical materials would not keep its chemical nature forever. Along with charge and discharge, the battery's chemical material reaction will be aging and deteriorating which lead to decline of workable capacity. Then the using time is also declined gradually. Chemical material will completely deteriorate and the battery can not be used when charge and discharge cycles are up to a certain extent.

9) Our battery have no power soon after it is fully charged?

Usually, there are two reasons as follows:

A: Battery's life is to the end ( We have to change another battery if it is true. ) Battery is an expendable product. Lithium-ion battery has about 500 charge/discharge cycles. Its performance will get worse and worse after charge/discharge cycles exceed 500. Then we have to change battery.

B: The battery is not used properly. a, Battery is placed under high temperature. b, Metal end of battery group is short circuited after removing the battery. c, AC to DC Adapter's quality is not good, thus unable to supply stable voltage and made the power manager in confusion.

Battery user's guide:

1) A new battery usually maintains a discharged condition with very low capacity. It is highly recommended to fully charge new battery packs before using. You can refer to the users' guide of your electronic device for charging instructions.

2) A new battery pack needs to be circled (fully discharged and recharged) three to five times to reach its optimum performance.

3) Rechargeable battery will undergo self-discharging when left unused for a long period of time. Thus, it should always be stored in a fully charged state and kept in a cool, dry and clean place.

4) To maintain the optimum performance of a battery pack, it is highly recommended to circle (fully discharging and recharging) it at least once a month.

5) It is normal if a new battery gets warm when being charged or used. However, please pay special attention if the battery pack becomes excessively hot. This may indicate there is a problem with the charging circuit of the electronic device. Please consult a qualified technician if necessary.

6) New batteries are hard to be charged. Sometimes, your electronic device may indicate a fully charged condition about 10 to 15 minutes when the new battery pack is being charged for the first time. When this happens, remove the battery pack and let it cool down for about 10 to 15 minutes then repeat the charging procedure. Sometimes, a new battery will suddenly refuse to be charged. If this happens, a suggested solution is trying to remove the battery from the device and insert it again.

The Do's and Don'ts of Battery Use:

Battery Do's
1. Fully charge/discharge battery up to 4 cycles before achieving full capacity of a new battery
2. Fully discharge and then fully charge the battery every two to three weeks for battery conditions.
3. Run the device under the battery's power until it shuts down or until you get a low battery warning. Then recharge the battery as instructed in the user's manual.
4. Remove from the device and stored in a cool, dry, clean place if the battery will not be in use for a month or longer.
5. Recharge the battery after a storage period.
6. Ensure maximum performance of the battery by optimizing the device's power management features. Refer to the manual for further instructions.

Battery Don'ts:
1. Do not short-circuit. A short-circuit may cause severe damage to the battery.
2. Do not drop, hit or otherwise abuse the battery as this may result in the exposure of the cell contents, which are corrosive.
3. Do not expose the battery to moisture or rain.
4. Keep battery away from fire or other sources of extreme heat. Do not incinerate. Exposure of battery to extreme heat may result in an explosion.

What causes short lifetime of battery? How to prolong the lifetime of battery?

1. Reason:

a. Charger or electro circuit can't be fit for the battery.

b. Overcharge and overdischarge, etc.

c. Battery can't comply with the charging requirement

2. Solutions:

a. Use the original charger.

b. Charge the battery after it automatically powers off , then full charge the battery.

c. Avoid erroneous usage of battery, such as heavy pressure, short circuit, fall off and so on.

To better use your battery, please take care of the precautions listed below:

1. Do not modify or disassemble it.
2. Do not incinerate or expose battery to excessive heat, which may result in an exposure.
3. Do not expose battery to water or other moist/wet substances.
4. Avoid piercing, hitting, crushing or any abuse use of the battery.
5. Do not forget to take away your battery from the device if you will not use it for a long time.
6. Avoid short circuit of the terminals by keeping your battery pack away from metal objects such as necklaces or hairpins.

Why can't the battery be charged? How to solve this problem?

1. Reason:
a.The battery has no voltage.
b.There is problem with charger, as it has no output electric current.
c.Low charging efficiency due to external cause.

2. Solutions:
a.Test whether the charger has voltage and output electric current or not.
b.Check if the charger is well contacted with battery.
c.Activate the battery with voltage and current 1.5 time higher then the highest ones of battery. (Use this method only when the battery can't be charged.)

New battery isn't charging :

New batteries are shipped in a discharged condition and must be charged before use.
We generally recommend an overnight charge (approximately twelve hours).
Refer to your user's manual for charging instruction.
Rechargeable batteries should be cycled - fully charged and then fully discharged - 2 to 4 times initially to allow them to reach their full capacity.
(Note: It is perfectly normal for a battery to become warm to the touch during charging and discharging).

New batteries are hard for your device to charge; they have never been fully charged and are therefore "unformed". Sometimes your device's charger will stop charging a new battery before it is fully charged. If this happens, simply remove the battery from your device and then re-insert it. The charge cycle should start again. This may happen several times during your first battery charge. Don't worry; it's perfectly normal.
(Is the information above helpful? You can contact us with any question about our products.)