Laptop Batteries /
Battery Replacement

All Standard Laptop Batteries:(6-cell) ............... $89.95
   Most PC Laptop Batteries in Stock

All Macbook Batteries: ................................... $109.95
   All Macbook / Macbook Pro Batteries in Stock

Laptop Batteries for most models available IN-STOCK.

All other batteries ordered and available for pickup/shipping within 1 business day.

Please use the Inquiry Form below to request pricing and availability specific to your model.

Batteries available for (but not limited to) the following brands of laptop:

Acer
Apple
Asus
Compaq
Dell
Fujitsu
Gateway
Hewlett-Packard
IBM
Lenovo
LG
MSI
Samsung
Sony (Vaio)
Toshiba

 

1. Please provide us with your laptop model name/number. (See Inquiry Form)

2. If an extended battery is desired, please indicate the size (# of cells).
(IMPORTANT: Please note that extended batteries will not completely fit into standard battery slots and so might pose a greater risk for accidental damage to your laptop when carried around!)

3. We will respond with price and availability.

4. If you would like us to ship the battery, please email us a confirmation (along with your mailing address) and call us with your credit card payment details.

Your laptop is an incredible device, but it needs power to run. You can run your laptop connected by a charger to a wall socket, or you can charge your battery and then use your laptop untethered, as a mobile device when traveling or when unable to access a power socket.

New laptops come with batteries that when fully charged typically allow your laptop to work for between 2 and 4 hours. Depending on usage patterns, over 2 to 3 years, as the battery is frequently charged, the power of a fully charged battery dissipates, until it just turns into a heavy paper weight and provides no power.

Time for a new battery.

1. Can I specifically calculate my battery run time?
   

   You can determine your laptops run time when you know how many watts your laptop computer uses and the total power capacity your notebook battery has. Here is how you can calculate this yourself.

   Battery capacity can also be measured in Watt-Hours. Watt-Hours are calculated by multiplying Volts x Milliamperes. Here is an example:

   14.8 Volts X 4060mAh (4000mAh is equal to 4.06 Amperes).
   Is also equivalent to:
   14.8 x 4.06 = 60.09 Watt-Hours

   Watt-Hours measure the energy which powers one watt for one hour. If your laptop runs at 20 watts, your run time will be: 3.004 hours (60.09 Watt-Hours / 20.0 watts Laptop pc power use)

   Will a higher milliamp (mAh) rating on my battery damage my laptop?
   No. Higher mAh ratings indicate that your battery will last longer. Although the milliamps may be higher, the voltage will always remain the same. If you have received a laptop battery that has a completely different voltage than your original laptop battery, please contact us immediately.

2. How can I extend my laptop battery run time?
   

   Your new laptop battery will have an average run time of 1 1/2 hours to 3 1/2 hours depending on what applications you are running. Functions that require more power will deplete your battery faster. You can extend your battery run time by minimizing the main power draws on your battery - the LCD brightness levels and the use of your CD or DVD drive.  Also some notebooks simply use more power than others.

   You can prolong your laptop battery life by adjusting the power management selections within your operating system software. If you are a Windows user, you can go to the control Panel and select power options. In this area you can choose when & how you can maximize your laptop battery settings

3. What do the power ratings mean - mAh, Volts, and Watts?
   

   MAh (Milliamperes) represents the amount of stored energy in your battery. 1000 Milliamperes = 1 Ampere. The more mAh capacity - the longer your battery will last. Several batteries from LaptopBatteryExpress.com have higher mAh ratings than your original battery brand. This does not mean that the battery is not the correct replacement, but rather it is a longer lasting battery. Voltage in a battery refers to the ìvolumeî of electricity that is delivered to your computer. The amount of energy that comes from your wall outlet is far in excess of what you need to operate the tiny circuits of a computer. Hence your power adapter contains a brick or bar like box that decreases the energy to a much lower voltage rating. Each computer manufacturer designs their computers for the appropriate voltage requirement. Your battery pack will then be engineered to match the voltage of the power AC adapter. Laptop battery packs are composed of several battery cells that are wired together in series. By combining the cells in this fashion, higher volumes of energy can be delivered to your laptop computer. For laptop computers, each battery cell has a voltage rating of 3.6 to 3.7 volts. (3.6V & 3.7V are used interchangeably and refer to the same amount of voltage.)

   Cells       Voltage/Cell       Formula                         Nominal Voltage
   1 cell       3.6V or 3.7V     1 cell x 3.6 or 3.7V         3.6V or 3.7V
   2 cells     3.6V or 3.7V     2 cells x 3.6V or 3.7V     7.2V or 7.4V
   3 cells     3.6V or 3.7V     3 cells x 3.6V or 3.7V     10.8V or 11.1V
   4 cells     3.6V or 3.7V     4 cells x 3.6V or 3.7V     14.4V or 14.8V

   Watts measure the amount of energy a device uses. This is a rating that will be found on your monitor and laptop PC, - not your battery.

4. NiCad and NiMH?
   

   NiCad (nickel Cadmium) batteries are best known as the battery type that has the ìmemory effectî. In order for these batteries to work efficiently, the battery must be completely discharged before recharging. If you recharge these batteries while there is still power stored in the cells, your battery will ìresetî itself so that it now only holds the amount of power stored from the last recharge. Many electric tooth brushes, power tools and other consumer items still utilize NiCad battery chemistry. If you have devices with NiCad batteries, you will save yourself some aggravation and money by having a  fully charged spare battery to insert while you recharge your depleted battery. NiCad batteries are the least expensive to produce, but because of the memory effect problem, these type of batteries are slowly being phased out with other improved battery materials.

   NiMH batteries are less prone to develop this problem and thus require less maintenance and conditioning. In addition, NiMH batteries can store about twice as much energy as NiCad batteries without adding any additional weight. NiMH batteries are also environmentally friendlier than NiCad batteries since they do not contain heavy metals (which present serious landfill problems). Note: Not all devices can accept both NiCad and NiMH batteries.

   Lithium Ion:
   Lithium-Ion (Li-Ion) has become the new standard for portable power in consumer devices and laptop batteries. Li-Ion batteries produce the same energy as NiMH battery but weigh approximately 20%-35% less. This 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.

5. What is the difference between NiCad, NiMH and Lithium-ion laptop batteries?
   

   Batteries in laptops, camcorder and cell phones are typically made using one of three battery chemistries: Nickel Cadmium (Ni-Cd), Nickel Metal Hydride (Ni-MH) or Lithium Ion (Li-Ion) battery cell chemistry.

6. How long will my laptop battery run?
   

   Average run time is 1 1/2 hours to 3 1/2 hours depending on what applications you are running. Functions that require more power will deplete your laptop battery faster. Viewing a DVD or using your CD player to play and record music are power intensive functions and will consume power at a faster rate. Also different notebooks use more power than others. Most laptops have a power management control panel where power use can be reduced while on battery power, such as reducing the brightness of your LCD screen. External batteries can also be purchased to provided extended power.

7. How to check laptop battery life.
   

   You can check your computerís remaining battery life by clicking your battery icon or accessing the ìPower Optionsî section within your computerís control panel. Your laptop battery life depends on the power capacity of your laptop battery and the amount of energy your computer draws.

8. How can I minimize the power my laptop uses?
   
   Your laptop battery life depends on the power capacity of your laptop battery and the amount of energy your computer draws. You can maximize your laptop battery life by changing the amount of power your computer draws while in battery mode. If you are a Windows user, within your Control Panel section you will find Power Options. In this section you can change power use and low power alerts. Windows Vista users will be able to lower the brightness of the LCD panel and extend the battery life considerably. You can also extend your battery life between charges by minimizing the use of your CD and DVD drive operation.
   
   
9. Why does my laptop battery lose power over time?
   
   Over time, laptop batteries lose their ability to hold a charge. This is a normal occurrence and is common to all rechargeable laptop batteries. Most notebook batteries today are made with advanced materials that hold their charge much longer than earlier technologies used just a few years ago. Even so, the life of a laptop battery today will be approximately 500 recharges. For most users, 2- 3 years is a typical life expectancy of a laptop battery.
   
   
10. Is it normal for a battery to produce heat while it is being used and while charging?
    
    It is normal for notebook batteries to produce heat when they are being charged and also when you are running on battery power. As energy is transfered within your battery cells, heat is a natural byproduct.
    
    
    

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(30 Day Warranty on Batteries)

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