In Search For A Laptop Battery
Try to google the keyword laptop battery and you will be surprised with the number of websites you will see. Well, there are 19,300,000 websites to date. This is less important, nonetheless, if you do not know the what, where and who in purchasing a laptop battery.
In order to help you decide on this matter, I have listed down seven groupings that you need to be aware of.
1. First on the list are the part number, make and model. Part number refers to the sole attribute designated to a piece in order to make referencing easy and simplified. It also helps to unmistakably identify a piece in a manufacturer?s product. This is very important for you to be able to buy your battery as this will be asked from you. The make and the model come as the next most essential part attributes. Make refers to the manufacturer?s name such as HP, Dell or Sony. The model, on the other hands, is a combination of words and numbers and is commonly referred to as the model number. Let us take the case of Sony VAIO VGN-FZ90S. By this, you will be able to identify that the product was manufactured by Sony and belongs to the VAIO chain with VGN-FZ90S as its model number.
All of these data can be obtained in the systems data of your computer by just going to properties. The part number of the battery can be on the battery itself.
2. Second is the required battery chemistry. Almost all laptops need a lithium-based battery composition. Do not ever try to buy batteries because it was what you wanted. You need to follow the requirements of your battery.
3. Third is ability. This is known as runtime battery ability which measures the amount of energy stocked up in the battery.
The higher the ability the longer the runtime is between charging the battery. The ability of a battery is measured in amperes, which is the quantity of electrons passing via the batteries electrolyte every second. The most usual notation system used is milliamp hour (mAh) for electronic batteries of consumers. Do remember that 1Ah is similar to 1000 mAh.
Knowing your pre-requisites on a battery?s capability is significant before purchasing one. Through these pre-requisites, you will be able to figure out the duration in using your laptop with the battery on as well as what to do if the battery is already low. Normally, expensive batteries have greater capabilities thus giving you more time to work prior to re-charging it.
4. Fourth is the volt (v) which is the measurement of energy potential. The mathematical way of measuring volts is with this equation: V = I multiply by R. The V stands for voltage, I for current and R for resistance. Voltage can also be referred to as Electrical Potential difference. In physics, it is a number associated to the sum of energy needed to shift an object from one place to another amid different kinds of force.
On the other hand, electrical potential difference, in the area of electronics is the expanse of work for each charge needed to budge electric charge from the second to the primary point or unvaryingly, the expanse of work that unit charge gushing from the primary to the second point. The voltage measurement of a battery has four inimitable types for which each type has an effect on the life of the battery.
a. Known as the zero power of battery electrical energy is the Float Voltage while it is detached.
b. Nominal voltage is the voltage of the battery which has a range from 3.7, 5.2, 10.2, 12 volts and so on. This simply states that a voltage range subsists relying on the battery?s number of cells. A battery with 12 volts has 6 cells and 12 volts of float voltage.
c. The Charge Voltage is the voltage when charging the battery.
d. Discharge voltage is the battery voltage whilst at its discharging state. This is ascertained by the charge condition and the electric power gushing in the battery.
Laptop batteries have the following principal voltage amounts: 7.2, 9.6, 10.8, 11.1 and 14.1 volts. When purchasing a laptop battery, voltage amount must be closer to the original battery. You cannot just buy a battery with your desired volts. However, a minor difference is allowed by the Nominal voltage. But still, if you need 14.4 volts, you cannot settle to using a battery with 7.2 volts. In other words, a minimal difference in the volt is allowed by the nominal voltage. For instance, you can use a 10.8 volt with an 11.1 volt battery.
5. The watt hours. Fundamental components of measure for Direct Current (also called DC) are Whr, watts, volts and amperes. A good example of a direct current energy source is the battery. The combined dimension of Volts multiplied by the Amperes gives us the Watts. The latter is indispensable as it corresponds to the electrical power exhausted by a battery and utilized by an electrical device. In effect, a watt is the gauge of the expanse of work performed by specific amperage of electric power at a specific voltage or pressure. To measure watt hours, just multiply volts with the capacity and then round off the product.
6. The number of cells determines the battery capacity. Therefore the more cells there are, the higher the capacity of the battery will be. In order to have a good knowledge of the number of cells your laptop battery has, you also need to have an inkling of the cells that are being utilized by your battery. Sony, LG, Panasonic, Sanyo and Samsung are just a few of the battery manufacturing industries that produce the well known 18650 battery cell.
The 18650 is the most universal battery cell. The barrel-shaped 18650 is a Li-Ion cell which has 3.6 volts and no memory effect. It also has an extensive storage life in contrast to the NiMH battery cells. The 18650 is weightless but has an elevated energy density. It is actually ideal for building laptop batteries and other portable electrical devices.
18650 batteries have an average nominal voltage of 3.7 volts and a normal capacity of 2200 mAh. Its charge current runs to a maximum of 2.4 Ah while the discharging current runs to a maximum of 4.6Ah. The dimension of 18659 is 18.3 by 64.9 mm (maximum is 18.4 x 65.1 mm) and is 46.5 g in weight and is approximately 1.64 ounces. This battery?s cell cycle performance is placed at 300 cycles which is almost 80% of its start-up capacity. 18650 batteries have been rated superior by most buyers.
To determine the number of cells in your laptop battery, you need to use the 18950 as your base. From the stated voltage of your battery, you then divide it with the 18650?s nominal voltage to arrive at the number of cells in series. Next, from the stated battery?s capacity, you then divide it by the 18650?s nominal capacity to arrive at the number of cells in parallel. You then get the product from the parallel and the series to arrive at the total number of battery cells.
7. Seventh are the seller, cost and warranty. After getting all the needed data, you can now select the merchant who you want to buy the battery from. Things you must consider in selecting a merchant when buying a laptop battery are the merchant?s reputation, the warranty, return policy and most importantly, the price. It is always wise to talk to a sales representative who can answer your concerns. Make sure, too, that the merchant is someone who is trustworthy. Do not be misled to buying second hand batteries for your laptop or ending up buying the wrong kind of battery.
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