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How can I maximize the performance of my battery?

There are several steps you can take to help you get maximum performance from your battery:
1. Prevent the Memory Effect - Keep the battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries which do not suffer from the memory effect.
2. Keep the 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 the portable device.
3. Exercise the Battery - Do not leave the 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.
4. Battery Storage - If you don't plan on using the battery for a month or more, store it in a clean, dry, cool place away from heat and metal objects. Ni-Cd, Ni-MH and Li-Ion batteries will self-discharge during storage; remember to recharge the batteries before use.
5. Sealed Lead Acid - (SLA) batteries must be kept at full charge during storage. This is usually achieved by using special trickle chargers. If you do not have a trickle charger, do not attempt to store SLA batteries for more than three months

My new battery isnt charging. Is it defective?

Usually NO. New batteries come in a discharged condition and must be fully charged before use. It is recommended that you fully charge and discharge the new battery two to four times to allow it to reach its maximum rated capacity. It is generally recommend an overnight charge (approximately twelve hours). It is normal for a battery to become warm to the touch during charging and discharging. When charging the battery for the first time, the device may indicate that charging is complete after just 10 or 15 minutes. This is a normal with rechargeable batteries. New batteries are hard for the device to charge; they have never been fully charged and not “broken in.” Sometimes the device's charger will stop charging a new battery before it is fully charged. If this happens, remove the battery from the device and then reinsert it. The charge cycle should begin again. This may happen several times during the first battery charge. Don't worry; it's perfectly normal.

What is the difference between Ni-Cd, Ni-MH and Lithium Ion batteries?

Batteries in portable consumer devices such as a laptop, camcorder, cellular phone, etc., are typically made using either Nickel Cadmium (Ni-Cd), Nickel Metal Hydride (Ni-MH) or Lithium Ion (Li-Ion) battery cell chemistry. Each type of rechargeable battery chemistry has its own unique characteristics as follows:
1. Ni-Cd and Ni-MH:
The main difference between the two is that Ni-MH battery (the newer technology of the two) offers higher energy density than Ni-Cd. In other words, the capacity of a Ni-MH is approximately twice the capacity of its Ni-Cd counterpart. What this means is for you is increased run-time from the battery with no additional bulk or weight. Ni-MH also offers another major advantage: Ni-Cd batteries tend to suffer from what is called the "memory effect". Ni-MH batteries are less prone to develop this problem and thus require less maintenance and conditioning. Ni-MH batteries are also environmentally friendlier than Ni-Cd batteries since they do not contain heavy metals (which present serious landfill problems). Note: Not all devices can accept both Ni-Cd or Ni-MH batteries.
2. Lithium Ion:
Lithium-Ion (Li-Ion) has become the new standard for portable power in consumer devices. Li-Ion batterys produce the same energy as Ni-MH battery but weighs approximately 20%-35% less. This is can make a noticeable difference in devices such as cellular phones, camcorders or notebook computers where the battery makes up a significant portion of the total weight. Another reason Li-Ion batteries have become so popular is that they do not suffer from the "memory effect" at all. They are also environmentally friendly because they don't contain toxic materials such as Cadmium or Mercury. 
Is it Possible to Upgrade the Device's Battery to a newer Chemistry? Maybe. Ni-Cd, Ni-MH and Li-Ion are all fundamentally different from one another and cannot be substituted unless the device has been pre-configured from the factory to accept more than one type of battery chemistry.

What are the usual charging ways for batteries?

1. Charge with constant current: the charging current is invariant when charging. This is the most frequently used charging way.
2. Charge with constant voltage: the charging voltage is invariant when charging while the inside current of the battery decreases as the voltage of the cell rises.
3. Charge battery with constant current (CC) first. When the voltage of the cell rises to a designated value, keep the voltage of the cell unchanged, charge the battery with constant voltage (CV), the charging current decreases until to zero.
4. The 1st and 2nd charging ways are usually applied for Ni-MH, Ni-Cd batteries and the 3rd charging ways are for lithium polymer batteries.

What is temperature cycling test?

Temperature Cycling Test includes 27 cycles. Every cycle includes the following steps:
1. Take the battery from normal room temperature environment into the environment with 66+/-3℃, 15+/-5% and rest for one hour.
2. Transfer the environment to be 33+_3c 905%, rest the battery for one hour.
3. Transfer the environment to be 403% rest the battery for one hour.
4. Rest the battery for 0.5 hour under 25C.
The above four steps make up a whole cycle. After 27 cycles, the battery should not leak, be rusted or have other abnormal results.

What is temperature rising test?

Charge the battery to full capacity and put it into the oven, increasing the temperature every 5 minutes until the temperature of the oven inside reaches 150℃, keep 150 for 10 minutes, the battery should not explode or got fire.

What is penetration test?

After the battery is fully charged, penetrate the battery from the center of it with a nail Ф2.5mm-5mm and let it stay inside, the battery should not explode or got fire.

What are the possible reasons for zero voltage or low voltage?

1. When batteries are short circuit from outside or over discharged/over charged or charge reverse.
2. When battery is continuously charged with high current, the electrode swells so that the two electrodes contact directly, short circuit is caused.
3. Batteries are short circuit or slightly short circuit from inside. Ex. There is spur on positive electrode or negative electrode, which gets through the insulator causing short circuit; Positive electrode and negative electrode are placed inappropriately and electrodes contact each other, causing short circuit; Positive electrodes contact directly with steel case, causing short circuit; Powder on negative electrode drops into the insulator or insulator fails to work well so that positive plates contact negative plates, causing short circuit.

How over discharge affect battery characteristics?

After the battery has been fully discharged and voltage lowers to the designated value, if we continue to discharge the battery, the battery will be over discharged. We usually set the cut-off voltage according to the discharging current. We often set cut-off voltage as 3.0V (Lipo cell) for battery with 0.2C-1C (normally) discharge current. Over discharging batteries, especially with large current, can bring disastrous results; over discharging batteries once and again will cause even worse result. Generally speaking, over discharging will cause battery’s internal pressure to rise, damage activity of positive electrode and negative electrode substance, decreasing battery’s capacity.

What problem will occur when mixed use batteries of different capacities and different voltages?

When mix use batteries of different capacities and different voltages, leakage or short circuit may occur. These problems occurred because some of the batteries will be over charged and some others are not charged to full capacity. When these batteries are discharged together, the batteries with full capacity cannot be fully discharged while the other batteries with low capacity will be over discharged. In this way, the batteries will be damaged and leakage or short circuit low (zero ) voltage will occur.

What is the depth of discharge (DOD)

DOD refers to the percentage that the capacity discharged account for the nominal capacity of the battery.
-Reducing the DOD can greatly prolong the service life of storage battery.
-vercharging and over discharging will shorten the service life of the battery.

What is nominal capacity?

Nominal capacity refers to the least capacity that should be discharged under certain charging or discharging condition. For example, the nominal capacity for HCP603450 is 1000mAh, it means when this battery is charged with 0.1C=100mA for 16 hours, rest 1~4 hours, then discharge with 0.2C=200mA to 3.0V, the capacity discharged should be no less than 1000mAh (Ambient temperature: 20±5℃)

Where Li-ion polymer batteries should be stored?

Li-ion polymer batteries should be stored in a place not exposed to direct sunlight. Make sure the area is dry and has minimal temperature variation. Storage in areas subject to high temperatures, humidity or rain may cause deterioration in battery quality and durability. To avoid short circuiting batteries during storage, be sure that the positive and negative terminals do not come in to contact with each other.

What is the battery internal resistance?

One of the urgent requirements of a battery for digital applications is low internal resistance. Measured in milliohms (mΩ), the internal resistance is the gatekeeper that, to a large extent, determines the runtime. The lower the resistance, the less restriction the battery encounters in delivering the needed power bursts. A high mΩ reading can trigger an early 'low battery' indication on a seemingly good battery because the available energy cannot be delivered in an appropriate manner. In HONCELL, we produce the massive Li-ion polymer batteries with little internal resistance. Please refer to our specified datasheet of each model for details of its resistance.

What will happen if the batteries with different capacity are packed together?

If the batteries with different capacity or new and old batteries are used together, leakage, zero voltage and so on might happen. If the battery are rechargeable and are being charged, some batteries is overcharged and other batteries is not in full charged state. During the discharge, some batteries can not discharge fully and other batteries might over discharge. This way, the battery will be damaged.

What is the short circuit?

If the positive and negative terminals come into contact with each other or with a metal object, this can cause a short circuit, generating heat. If the batteries are stacked on top of each other or mixed, the resulting short circuit can lead to heat generation, leakage, bursting and, eventually fire. Do not short circuit Li-ion polymer batteries.

What is the primary battery and secondary battery?

The primary battery refers to the battery that can only discharge and is not rechargeable while the secondary battery talks of the rechargeable battery that can be charged and used in duty-circle operation.

What is the package of Li-ion polymer batteries?

The Li-ion polymer battery is almost exclusively packaged in the so-called 'pouch cell'. This cell design made a profound advancement in 1995 when engineers succeeded in exchanging the hard shell with flexible, heat-sealable foils. The traditional metallic cylinder and glass-to-metal electrical feed-through has thus been replaced with an inexpensive foil packaging, similar to what is used in the food industry. The electrical contacts consist of conductive foil tabs that are welded to the electrode and sealed to the pouch material.

What is the memory effect?

In general, Li-ion and Lipo batteries have no memory effect. We are talking of some types such as nicd 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 ensure your battery remains healthy.

What is the cycle life of rechargeable battery?

When a battery experiences a charge and discharge, we call a cycle or a period. In the stated charge and discharge principles and the capacity decline before a stated standard, the total cycles it can undergo called rechargeable battery cycle life.

What is Li-ion polymer battery defined?

The so called Li-ion polymer battery is evolved from common liquid Li-ion battery by using licoo2 at cathode, carbon at anode, and polymer foil as electrolyte, eventually put these materials into a pouch shape aluminum plastic film package. Li-ion polymer battery is the new generation Lithium battery that has made significant milestones in battery's development. The obvious advantage of the Li-ion polymer battery not only has its high capacity, long cycle life, steady discharge rate and non-pollution, but also eliminates safety hazards that liquid Li-ion battery exists, especially of those steel can batteries. Furthermore, the flexible outline and custom design shape is more convenient at fingertips in a timely and cost effective way.

What effect can the temperature bring to the battery performance?

Among all the environmental elements, temperature has biggest effect on the battery performance. The electrochemical reaction on electrode / electrolyte interface is connected with the temperature. The electrode / electrolyte interface is considered to the heart of the battery. If the temperature gets lower, the reaction rate of the electrode also gets lower. If the battery voltage keeps invariable, the discharge current becomes lower, and also the power output will reduce. If the temperature goes up, the condition is reverse. That is, the battery's power output will increase. Temperature will also affect the speed of the transmission of the electrolyte. If the temperature goes up, the speed of transmission will be faster. If the temperature goes down, the speed of transmission will be slower. The battery performance will also be affected. But if the temperature become too higher, the chemical balance inside the battery will be broken and side reaction will be caused.

What are the possible reasons for zero voltage and low voltage of the battery?

The outsides short-circuit on the battery, overcharge, or over discharge. The battery is continuously over charged by the very high current. The battery is internally short-circuited or slight short-circuited.

What are the main components of Li-po battery?

The main components include the electrode, electrolyte, electrode tab, separator, and aluminum plastic packing foil.

What are the advantages of Li-po battery compared with other categories?

1. Excellent Safety: Performance: As the aluminum bluster outer package is different, in the metal-shelled liquid lithium power cell, no safety problems arise, as it can not detonate, only expand
2. Super Slim Design: suitable to all kinds of super thin electrical appliance, but liquid lithium ion will have technical bottleneck as thickness is less than 3.6mm.
3. Light Weight: The polymer lithium cell is 10-40% lighter than the same specification of the steel shell liquid lithium cell, and 5-20% lighter than aluminum shell liquid lithium cell. 
4. High Capability: The polymer capacity is 10-15% more than the same specification steel shell and aluminium shell liquid lithium cell.
5. Low Internal Resistance: At present the impedance of our products can be made below 35m, better using battery capacity. Because of the difference of impedance, the usage time can differ by 20-50% with the same.
6. Flexible Dimension: The thickness and shape can be made according to the requirements of customers. Some special shapes as arc-shape battery can also be made.
7. Excellent Discharge Performance: LIP applies gelled electrolyte with more stable discharge characteristics and higher discharge plateau.

What are the advantages between Li-po batteries and liquid Li-ion batteries

1. Safety: Compare to the metal-shelled liquid lithium power cell, no safety problems will arise for pouch Li-ion polymer cell because the aluminum foil pouch will not explode except expand.
2. Thickness: The common liquid lithium power cell is made by forming the outer shell first, and then adding the anode and cathode. If required thickness should be less than 3.6mm, there exists a technical bottleneck. But the polymer lithium cell does not have this problem; theoretically the thinnest can be 0.6mm.
3. Weight: The polymer lithium cell is 40% lighter than the same specification of the steel can liquid lithium cell, and 20% lighter than aluminum rind liquid lithium cell.
4. Capacity: The polymer capacity is 10-15% more than the same specification steel can or aluminum rind liquid lithium cell.
5. Resistance: At present the impedance of our product can be made below 35mΩ, and this is a significant level of the battery's impedance. With the same capacity, but owing to our different design and improved impedance, the cycling time can differ by 20-50%.
6. Outline: Flexible and diversity customized design.
7. Discharge: By using a special electrolyte, the cell has a more regular discharge performance and higher discharge platform.

Need battery be activated?

Yes. But this is not the job for users. All of our batteries have been activated in-house after some complicated procedures. What users have to do is only proceeding 3 to 5 times complete charging and discharging before use to achieve for the best capacity condition

How to maximize battery performance?

There are several steps you can take to ensure that you get maximum performance from the battery as follow: 
1. Break 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 the new battery two to four times to allow it to reach its maximum rated capacity.
2. Prevent the Memory Effect: Keep the battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries, which do not suffer from the memory effect.
3. Keep the 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 the portable device.
4. Exercise the Battery: Do not leave the 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.
5. Battery Storage: If you don't plan on using the battery for a month or more, we recommend storing it in a clean, dry, cool place away from heat and metal objects. Ni-Cd, Ni-MH, Li-Ion and Lipo batteries will self-discharge during storage; remember to break them in before use.
6. For Laptop Users: To get maximum performance from your laptop battery, fully optimize the notebooks power management features prior to use. Power management is a trade off: better power conservation in exchange for lesser computer performance. The power management system conserves battery power by setting the processor to run at a slower speed, dimming the screen, spinning down the hard drive when it's not in use and causing the machine to go into sleep mode when inactive. The notebook users guide will provide information relating to specific power management features.

How long will the new main battery power the laptop?

Battery run-time on a laptop is difficult to determine. Average run time is 2.5 hours to 3.5 hours. Actual battery run time depends upon the power demands made by the equipment. The use of the screen, the hard drive and other accessories result in an additional drain upon the battery, effectively reducing its run time. The total run-time of the battery is also dependent upon the design of the equipment. For example, if you are viewing a DVD, or recording music etc., the battery power will diminish quicker. Generally, a new battery will run 30% to 50% longer than the old battery did when it was new.

How long do batteries last?

The life of a rechargeable battery operating under normal conditions is generally between 500 to 800 charge-discharge cycles. This translates into one and a half to three years of battery life for the average user. As the rechargeable battery begins to die, the user will notice a decline in the running time of the battery. When a battery that originally operated the notebook for two hours is only supplying the user with an hour's worth of use, it's time for a new one.

How do we control the quality in-house?

We strongly believe that the quality is the life line of an enterprise, therefore, the quality control are always considered as the most important thing in our production management. We count on our professional and well-trained QC team to effectively control the quality of our products; Our QC Department mainly consists of IQC, IPQC, FQC and QA.

How are batteries rated? What are volts and amps?

There are two ratings on every battery: volts and amp-hours (Ah). The Ah rating may also be given as milliamp-hours (mah), which are one-thousandth of an amp-hour (for example, a 1Ah battery is 1000mah). Amp-hours are a rating of the amount of energy that a battery can store. Another way of looking at it is to say that the higher a battery's amp-hour rating is, the longer the battery's run-time will be. Some of our batteries will have higher amp-hour ratings than the original battery found in your device and will not cause any incompatibilities.

Can I use Li-po batteries mixing with other types?

If different types of batteries are used together, or new batteries are used with old ones, the difference in characteristics of voltage, capacity, etc., may cause over-discharge of the battery which is exhausted first, leading to swelling, bursting or fire.


What is UL?

UL (Underwriters Laboratories) is a safety consulting and certification company headquartered in Northbrook, Illinois. It maintains offices in 46 countries. UL was established in 1894 and has participated in the safety analysis of many of the last century's new technologies, most notably the public adoption of electricity and the drafting of safety standards for electrical devices and components.[citation needed]
UL provides safety-related certification, validation, testing, inspection, auditing, advising and training services to a wide range of clients, including manufacturers, retailers, policymakers, regulators, service companies, and consumers.
UL is one of several companies approved to perform safety testing by the US federal agency Occupational Safety and Health Administration (OSHA). OSHA maintains a list of approved testing laboratories, which are known as Nationally Recognized Testing Laboratories.

Underwriters Laboratories
UL is the trusted source across the globe for product compliance. Benefiting a range of customers - from manufacturers and retailers to consumers and regulating bodies - we抳e tested products for public safety for more than a century.
And now, we can offer one of the conformity assessment industry抯 broadest portfolios of capabilities and certification marks. Our unique mix of local expertise in global markets and deep industry knowledge helps bring safer products to markets faster than ever before.
UL Standards for Safety
UL has developed more than 800 Standards for Safety. Our Standards for Safety are essential to helping ensure public safety and confidence, reduce costs, improve quality and market products and services. Millions of products and their components are tested to UL's rigorous safety standards with the result that consumers live in a safer environment than they would have otherwise.

As of January 2007, UL Certification customers can access UL and ULC Standards at www.ULStandards.com. Other features include establishing a customized standards library with e-mail notifications of all updates, including revisions and proposals, to UL Standards material in your library. Not sure if your company already uses the Standards Certification Customer Library website, then contact customer service at 1-888-UL33503 (1-888-853-3503).
Sales of UL Standards Materials
UL Standards for Safety are now available from comm 2000. To provide greater flexibility to UL clients and others worldwide, comm. 2000 offers four easy ways of obtaining UL Standards and Standards-Related Products and Services anytime! Many of UL's Standards are American National Standards that utilize Standards Technical Panels as the consensus body. Information on UL's Standards Technical Panels is available at http://ulstandardsinfonet.ul.com/stp/index.html.
Collaborative Standards Development System
UL's Collaborative Standards Development System (CSDS) provides online access for review and submitting information for UL's Standards development process. General access is available for information on STP meetings, submitting proposals, and proposals available.
UL's Standards Department website, http://ulstandardsinfonet.ul.com, contains information about UL Standards. Information available includes:
• Current Catalog of Standards,
• Standards pricing information,
• Standards bulletins,
• Scopes of UL Standards,
• Scopes of all UL Outlines,
• Harmonization Information, and
• National Electric Code (NEC) changes and proposals to STP
The Standards Department Web site is routinely taken down for maintenance, every Monday from 5:30 a.m. to 12:00 p.m. GMT.


What are the key features of Lithium-ion battery

Advantages
In many ways Lithium is almost the perfect cell chemistry and many variants exist. Practical Lithium based rechargeable batteries were first demonstrated in the 1970's, and they are now used in very high volumes in low power applications such as mobile phones, laptops, cameras and other consumer electronic products. They have many attractive performance advantages which make them also ideal for higher power applications such as automotive and standby power.

1.  High cell voltage of 3.6 Volts means fewer cells and associated connections and electronics are needed for high voltage batteries. (One Lithium cell can replace three NiCad or NiMH cells which have a cell voltage of only 1.2 Volts)
2.  No liquid electrolyte means they are immune from leaking.
3.  Very high energy density (About 4 times better than Lead acid). For example a 3.5 ton electric powered LDV light van uses 750Kg of Lead acid batteries. The same capacity could be provided by less than 200 Kg of Lithium batteries, allowing the van an increased payload of half a ton. Alternatively. The van's range of only 50 miles could be quadrupled by using the same weight of Lithium batteries.
4.  Very high power density. As above.
5.  Very small batteries also available. Solid state chemistry can be printed on to ceramic or flexible substrates to form thin film batteries with unique properties.
6.  Low weight
7.  Can be optimised for capacity or rate.
8.  Individual cells up to 1000Ah capacity available.
9.  Can be discharged at the 40C rate or more. The high discharge rate means that for automotive use the required cold cranking power or boost power for hybrid vehicles can be provided by a lower capacity battery.
10. Fast charge possible.
11. Can be deep cycled. The cell maintains a constant voltage for over 80% of its discharge curve. It thus delivers full power down to 80% DOD versus 50% for Lead acid. This means that in practice, for a given capacity, more of the stored energy is usable or that the battery will accept more starting attempts or boost power requests before becoming effectively discharged.
12. Very low self discharge rate. Can retain charge for up to ten years.
13. Very high coulombic efficiency (Capacity discharged over Capacity charged) up to 95% or more. Thus very little power is lost during the charge/discharge cycles.
14. No memory effect. No reconditioning needed.
15. Tolerates microcycles
16. Long cycle life. 1000 to 3000 deep cycles. (But see Lithium titanate below). Cycle life can be extended significantly by using protective circuits to limit the permissible DOD of the battery. This mitigates against the high initial costs of the battery.
17. Does not need reconditioning as do nickel based batteries.
18. Variants of the basic cell chemistry allow the performance to be tuned for specific applications.
19. Available in a wide range of cell constructions with capacities from less than 500 mAh to 1000 Ah from a large number (over 100) of suppliers world-wide.

How to maximize battery performance?

There are several steps you can take to ensure that you get maximum performance from the battery as follow:
1. Break 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 the new battery two to four times to allow it to reach its maximum rated capacity.
2. Prevent the Memory Effect: Keep the battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries, which do not suffer from the memory effect.
3. Keep the 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 the portable device.
4. Exercise the Battery: Do not leave the 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.
5. Battery Storage: If you don't plan on using the battery for a month or more, we recommend storing it in a clean, dry, cool place away from heat and metal objects. Ni-Cd, Ni-MH, Li-Ion and Lipo batteries will self-discharge during storage; remember to break them in before use.
6. For Laptop Users: To get maximum performance from your laptop battery, fully optimize the notebooks power management features prior to use. Power management is a trade off: better power conservation in exchange for lesser computer performance. The power management system conserves battery power by setting the processor to run at a slower speed, dimming the screen, spinning down the hard drive when it's not in use and causing the machine to go into sleep mode when inactive. The notebook users guide will provide information relating to specific power management features.

How long will the new main battery power the laptop?

Battery runtime on a laptop is difficult to determine. Average run time is 2.5 hours to 3.5 hours. Actual battery run time depends upon the power demands made by the equipment. The use of the screen, the hard drive and other accessories result in an additional drain upon the battery, effectively reducing its run time. The total run-time of the battery is also dependent upon the design of the equipment. For example, if you are viewing a DVD, or recording music etc., the battery power will diminish quicker. Generally, a new battery will run 30% to 50% longer than the old battery did when it was new.

How long do batteries last?

The life of a rechargeable battery operating under normal conditions is generally between 500 to 800 charge-discharge cycles. This translates into one and a half to three years of battery life for the average user. As the rechargeable battery begins to die, the user will notice a decline in the running time of the battery. When a battery that originally operated the notebook for two hours is only supplying the user with an hour's worth of use, it's time for a new one.

How do we control the quality in-house?

We strongly believe that the quality is the life line of an enterprise, therefore, the quality control are always considered as the most important thing in our production management. We count on our professional and well-trained QC team to effectively control the quality of our products; Our QC Department mainly consists of IQC, IPQC, FQC and QA

How are batteries rated? What are volts and amps?

There are two ratings on every battery: volts and amp-hours (Ah). The Ah rating may also be given as milliamp-hours (mah), which are one-thousandth of an amp-hour (for example, a 1Ah battery is 1000mah). Amp-hours are a rating of the amount of energy that a battery can store. Another way of looking at it is to say that the higher a battery's amp-hour rating is, the longer the battery's run-time will be. Some of our batteries will have higher amp-hour ratings than the original battery found in your device and will not cause any incompatibilities.

Can Li-ion polymer battery be contacted with water?

No. Since the water is of that conductive substance that may cause the battery short circuit and may damage the battery if contacted for a long time.

Can I use Li-ion polymer batteries mixing with other battery types?

If different types of batteries are used together, or new batteries are used with old ones, the difference in characteristics of voltage, capacity, etc., may cause over-discharge of the battery which is exhausted first, leading to swelling, bursting or fire.

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