How to choose a notebook batteries?
Laptop Battery should be fully charged or discharged if it is not in use for a long time?
Can I use my old version Ni-Cd battery chargers to charge my Ni-MH batteries?
Can I use original laptop adapter to charge the replacement laptop batteries?
Does it really help to store batteries in the refrigerator?
How can batteries be connected?
How do I charge my batteries?
How do I know my battery has been fully charged?
How long does a notebook battery last?
How long I should charge my new before first use?
How long should I expect my battery to last over its lifetime?
How Long will my Laptop run with this New Replacement Battery?
How long will the new main battery power the laptop?
How should I dispose of my old Battery?
How to buy a laptop battery?
How to calibrate the battery?
How to classify batteries?
How to optimize Your laptop battery performance?
How to rightly use batteries?
How to store batteries?
How to test battery life?
Is there anything in particular I should know to ensure safe operation of this battery?
Laptop battery Maintenance and User Instructions
My new laptop and/or camcorder battery is not working at all! What's up?
Precautions when using a battery.
Resistance of the battery?
Shouldnt I buy Name Brand batteries for my Digital Camera?
Sometimes my battery’s charge lasts a long time, sometimes it doesn’t. Is this a problem?
The rating for battery.
What are the differences between Primary Battery and Rechargeable Battery?
How to choose a notebook batteries? You'd better choose the same type notebook battery for exchange. In order to make notebook computer battery have a longer power supply time,you can choose lithium battery recommended by manufacturer or following the pc vade mecum.
Laptop Battery should be fully charged or discharged if it is not in use for a long time? Storing the laptop batteries at full discharge for long period of time will have the LifeBook T4020D Tablet PC battery cells lose their activity, even have the control circuit protection self-closed which resulted in its inability to be re-used. Storing the LifeBook T4020D Tablet PC laptop batteries at full charge will have battery safety jeopardized. The best way to store the batteries is to keep the laptop 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 laptop battery at excellent storage state and LifeBook T4020D Tablet PC battery power free from flowing away completely which could damage the battery.
Can I use my old version Ni-Cd battery chargers to charge my Ni-MH batteries? No, you can use a new Ni-MH charger to charge your old Ni-CD batteries but you should not try to charge Ni-MH batteries with a Ni-CD charger. Here's why: Ni-MH and Ni-CD batteries are chemically very similar and when both are fully charged the battery voltage will start to drop. The Ni-MH voltage drop is much more subtle and more difficult to detect. Ni-MH chargers usually have an over temperature sensor and shutoff to prevent overcharge as well as a more sensitive voltage drop detector where Ni-CD chargers usually only use the voltage drop to determine when to stop charging. If you charge Ni-MH batteries in a Ni-CD charger it will probably miss the voltage drop and keep right on charging causing the batteries to overheat. Overcharging and overheating Ni-MH batteries can damage them internally and reduce battery life.
Can I use original laptop adapter to charge the replacement laptop batteries? All of replacement laptop batteries can be charged by the original laptop adapter. On the other hand, replacement laptop adapter can charge the OEM batteries.
Does it really help to store batteries in the refrigerator? The answer is ok, but only if they can be kept dry as well. The higher the temperature, the more the free flow of ions or self-discharge from the battery. Storing primary batteries (D's, C's, AA's, AAA's, 9 volt, etc.) in a cooler environment slows down this rate of discharge that all batteries experience even when not in use, hence a longer shelf life. However, if this is done, it is important that the batteries be kept as dry as possible by keeping them in an airtight container in the driest part of the refrigerator, the door side for example. Long time exposure to moisture inside the refrigerator can cause internal corrosion to the battery. When removing batteries from the refrigerator, we allow them to warm up to room temperature before using them in your device.
How can batteries be connected? Batteries may be connected in series. The positive terminal of the first battery is connected to the negative terminal of the second battery; the positive terminal of the second is connected to the negative of the third, and so on. The voltage of the assembled battery is the sum of the individual batteries. The batteries are connected: + to - to + to - to + to -, etc. The capacity of the battery is unchanged. Note: When interconnecting batteries (cells), they must be identical in voltage and amp rating! Batteries may also be connected in parallel. The positive terminal of the first battery is connected to the positive terminal of the second battery, the positive terminal of the second is connected to the positive of the third; the negative terminal of the first battery is connected to the negative terminal of the second battery, the negative terminal of the second is connected to the negative of the third and so on. The batteries are connected: + to + to + and - to - to -. In this configuration, the capacity is the sum of the individual batteries and voltage is unchanged. For example, (5)6V 10AH batteries connected in series produces a battery array that is 30 Volts and 10AH. Connecting the batteries in parallel produces a battery array that is 6 Volts and 50AH. Ordinary auto batteries are designed in the same fashion. Six 2-volt cells are arranged in series to produce a 12v battery. Many Ni-Cd batteries are arranged in the same way.
How do I charge my batteries? Our Ni-MH chargers are fully automatic. Plug your charger into an A/C (or D/C power source for the Powere MH-C204F-DC) and place your batteries into the charger in matched pairs of two or four batteries to begin charging. Red lights indicate charging in progress. The lights will turn green when charging is complete and the charger will automatically switch to a trickle charge. The trickle charge will keep your batteries fully charged and ready for use. Refer to our Charger Manuals page for more detailed operating instructions for your model charger.
How do I know my battery has been fully charged? There are charging status LED indicators on our battery chargers. The LED 'STAUTS' lights in red and the LED 'CHARGER' flashes in green while the battery charger connected to the power supply. After you've loaded the battery, the LED 'CHARGER' lights in red. The LED 'CHARGER' flashes in green and red alternately when the battery is almost achieving maximum capacity (over 90%). The LED 'CHARGER' will lights green when the charger completed the charging process.
How long does a notebook battery last? The life span of a Notebook battery is about 1.5 to 3 years under normal conditions. As the rechargeable battery begins to die, the user will notice a decline in the running time of the battery.
How long I should charge my new before first use? Upon initial use, the battery may require to charge fully for achieving the maximum capacity. Most batteries will automatically stop charging when they have been fully charged.
How long should I expect my battery to last over its lifetime? The life of a rechargeable battery operating under normal conditions is 500 to 800 charge-discharge cycles. This typically translates into one and a half to three years of battery life for the average user. As your rechargeable battery begins to die, you will notice a decline in the running time of the battery. When your battery is only supplying you with less than one hour’s worth of normal use, it’s time for a new one.
How Long will my Laptop run with this New Replacement Battery? The simple answer is: At least as long, and maybe longer, than the original battery that powered your Laptop when it was new. Batteries from Mobile Tech Power meet or exceed OEM battery specifications and performance. Actual run times are governed by a number of variables. The size and brightness setting of your monitor/screen, the speed and size of your hard disk, the power drain and the frequency of use for the various peripheral devices like DVD Drives all impact run times. Some operating systems (especially Windows) engage in near constant disk accesses that can also create a battery drain.
How long will the new main battery power the laptop? Battery run-time on a laptop is difficult to determine. Actual battery running time depends upon the power demands made by the equipment. The use of the screen, the hard drive and other accessories results in an additional drain upon the battery, effectively reducing its running time. The total run-time of the battery is also dependent upon the design of the equipment. Generally, a new Hi-Capacity battery will run 30% to 50% longer than the old battery did when it was new.
How should I dispose of my old Battery? Contact Rechargeable Battery Recycling Corporation (RBRC) at www.rbrc.com or call them at 678-419-9990. They work with you to recycle old batteries. They can direct you to a drop-off location in your area.
How to buy a laptop battery? When purchasing a battery for your laptop computer, the first thing a consumer should look for is the reputation of the product at mind. The next main thing a consumer should look for is the type of battery. Lastly you must look at the power rating of the item?
How to calibrate the battery? Most laptop batteries are 'smart'; meaning that they know how much energy is left. Such a feature has definite benefits but the readings are often inaccurate. A laptop may indicate 30 minutes of remaining runtime when suddenly the screen goes dark. Here is the reason why: With use and time, a tracking error occurs between the chemical battery and the digital sensing circuit. The most ideal use of the 'smart' battery, as far as fuel-gauge accuracy is concerned, is a full charge followed by a full discharge at a constant current. In such a case, the tracking error would be less than 1% per cycle. In real life, however, a battery may be discharged for only a few minutes and the load may vary widely. Long storage also contributes to errors because the circuit cannot accurately compensate for self-discharge. Eventually, the true capacity of the battery no longer synchronizes with the fuel gauge and a deliberate full charge and discharge is needed to 're-learn' or calibrate the battery. What happens if no battery calibration is done? Can such a battery be used in confidence? Most 'smart' battery chargers obey the dictates of the chemical cells rather than the electronic circuit. In this case, the battery will fully charge regardless of the fuel gauge setting and function normally, but the digital readout will become increasingly more inaccurate. If not corrected, the fuel gauge simply becomes a nuisance. At what point of a discharge does the reset occur? Lithium-ion is considered fully discharged between 2.5 and 3.0 volts per cell. The electronic circuit in the battery is designed to reset between these voltage levels. A problem occurs if the laptop cuts off before this low voltage can be reached. In such a case, an external charger with discharge function may be used. Cadex Electronics manufactures 'smart' chargers and battery analyzers, both of which can be used to test and calibrate the 'smart' battery.
How to classify batteries? Batteries are grouped into following categories:
Alkaline battery
Zincic carbolic battery
Lead-Acid battery
Nickel-metal-hydride
Nickel-cadmium
Lithium battery
Li-ion battery
Li-polymer battery
Fuel cells
Solar cells
Other types of battery
How to optimize your laptop battery performance? It is recommended to condition (fully charge and discharge) the new battery few times to allow it to reach its maximum rated capacity . Condition the Ni-MH and Nicd battery at least once a month. It will reduce the memory effect. Use the battery at least once a month even it was kept in a dry and cool storage. Clean the metal connector (the contact to the notebook, usually in color of gold or silver) by alcohol or Electronics Cleaner Degreaser. It will maintain the good conductivity, which improves the power conduction from battery to Notebook. Fully optimize the Power Management features provided in system BIOS, and Operating System will also improve the battery performance. Consult the user's manual to fully understand the usage of these features.
How to rightly use batteries? Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly caused by heat rather than charge/discharge patterns. Although memory-free, apply a deliberate full discharge once every 30 charges to calibrate batteries with fuel gauge. Running down the battery in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate. The battery life will not be affected. Keep the lithium-ion battery cool. Avoid a hot car. Avoid purchasing spare lithium-ion batteries for later use. Do not buy old stock, even if sold at clearance prices.
How to store battery? If the battery will not be in use for a month or longer, it is recommended that it should be removed from the device and stored in a cool, dry, clean place. Refrigeration is recommended but freezers should be avoided. When refrigerated, the battery should be placed in a plastic bag to protect against condensation. Do not fully charge lithium and nickel-based batteries before storage. Keep them partially charged and apply a full charge before use. Store li-ion battery at about 40% state-of-charge (3.75-3.80V/cell open terminal). Lead-acid batteries must be stored fully charged. Do not store lithium-ion fully depleted. If empty, charge for about 30 minutes before storage. Self-discharge on a depleted battery may cause the protection circuit to trip, preventing a recharge. Do not stockpile lithium-ion batteries; avoid buying dated stock, even if offered at a reduced price. Observe the manufacturing date, if available. Never leave a nickel-based battery sitting on a charger for more than a few days. Prolonged trickle charge causes crystalline formation (memory). Moreover, a charged battery may eventually lose its charge if unused. It may therefore be necessary to recharge the battery after a storage period (May be 3 months once).
How to test battery life? I recommend the right method to know how long will notebook batteries be used, that's make use of the BatteryMark4.0.1 software to test your ibm notebook batteries.
Is there anything in particular I should know to ensure safe operation of this battery? Yes, do not do any of the following: I. Be careful not to short-circuit the battery by accidentally making a simultaneous contact or connection between the positive and negative terminals. Short circuits can damage and/or disable a battery. II. Dont drop it, hit it, or take any action that may cause the case to open. The contents of a battery can be very corrosive. III. Do not get the battery wet, through contact with water, rain, or other sources of moisture. Do not burn, incinerate, or otherwise expose the battery to fire. Extreme heat can cause a battery to explode.
Laptop battery Maintenance and User Instructions 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. Precautions when using a battery 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.
My new laptop and/or 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).
Precautions when using a battery. 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.
Resistance of the battery? One battery that does not perform well at a 1C discharge rate is the portable sealed lead-acid. To obtain a reasonably good capacity reading, manufacturers commonly rate these batteries at 0.05C or 20 hour discharge. Even at this slow discharge rate, a 100% capacity is hard to attain. To compensate for different readings at various discharge currents, manufacturers offer a capacity offset. Applying the offset to correct the capacity readout does not improve battery performance; it merely adjusts the capacity calculation if discharged at a higher or lower C-rate than specified. Lithium-ion/polymer batteries are electronically protected against high load currents. Depending on battery type, the discharge is limited to between 1C and 2C. This protection makes the lithium ion unsuitable for biomedical equipment and power tools demanding high inrush currents.
Shouldnt I buy Name Brand batteries for my Digital Camera? Well, you can, but consider this: Many of todays Personal Computer Printers actually cost only three or four times the cost of the ink cartridges that go in them. Printer Manufacturers make much more money from the cartridges than from the printers. A similar tactic is used by many Digital Camera makers. When you buy a Digital Camera battery from Mobile Tech Power you typically pay considerably less than for a Brand Name or OEM battery. But the quality, performance, and life expectancy will equal or exceed that of the OEM battery. Like many Prescription Drugs, the generic can be every bit as good as the Name Brand version. When you buy from Mobile Tech Power, it will be.
Sometimes my battery’s charge lasts a long time, sometimes it doesn’t. Is this a problem? The average runtime for a ‘healthy’ battery is 2.5 hours. Actual battery run-time depends upon the power demands made by the equipment. In the case of notebook computers, the use of the monitor, the hard drive and other peripherals results in an additional drain upon the battery, effectively reducing the battery’s run time. Watching DVD’s, burning media or playing graphic-intensive games is especially taxing and will significantly reduce the run-time of your current charge.
The rating for battery? V(olts): The voltage of the new battery should always match the voltage of the original. mAh:It standards for milli-Amp hours (1 mAh=0.001Ah), High amp-hour rating means a longer run-time and will not cause incompatibilities.
What are the differences between Primary Battery and Rechargeable Battery? A primary battery is not intended to be recharged and is discarded when the battery has delivered all of its electrical energy. A rechargeable battery is a galvanic battery which, after discharge, is restored to the fully charged state by the passage of an electrical current through the cell in the opposite direction to that of discharge.
