It goes without saying that the performance of a laptop depends a lot on its battery. After all, a laptop becomes mobile only when its battery allows for a longer runtime. With all the wide variety of choices in the market, it’s always good to be knowledgeable about the many types of batteries that are available so you can make the right choice.
The types of laptop batteries vary greatly according to the technology used to create them, the efficiency of their performance, and the hazards that come with their use. There are three popular kinds of laptop batteries that have been used over the years.
The nickel cadmium batteries were used in old laptops. They are actually the first rechargeable batteries ever used in notebooks because for a relatively low cost, one can yield satisfactory output. However, as time went by, the NiCad battery lost its popularity over more environment-friendly types. One of the downsides of using this type is what is known as the memory effect. This refers to the decrease in a battery’s life when you charge it without letting it completely drain first. A NiCad battery can also be severely damaged when it is left plugged onto the charger long after it is fully charged.
NiCad batteries have relatively low capacities compared to the most modern ones. It’s not anymore used for newer notebooks because these batteries are heavier and pose more negative consequences than benefits.
The nickel metal hybrid (NiMH) batteries are just a couple of steps higher than the NiCad ones. They have twice the energy output of the older type but are still susceptible to memory effect. NiMH batteries are still available these days. They are usually found in older laptops and manufacturers haven’t removed them from the market yet as many people are still attached to their bulky but reliable notebooks.
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NiMH batteries are an improvement from the NiCad ones. They are much more reliable but again, you can’t leave them on the charger long after they’re fully charged nor can you charge them before they are fully drained.
Lithium ion (LiON) batteries are the most popular types that are currently used in newer laptops. These batteries do not have the dreaded memory effect that their predecessors suffered from. They are also relatively lighter than the other two and have a better power output. The LiON batteries answer the demand for efficient power sources at a minimal production cost. Considering that notebook users live in a fast-paced environment, this is a great development that nobody can’t do without.
By far, the Lithium ion batteries are the recommended choice for today’s laptops. If you’re using a refurbished laptop that can take all types of batteries, you should consider getting a LiON battery. It weighs half as much as the older ones and promises more benefits that are more suited to the present.
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However, it’s important to note that a laptop battery can only perform efficiently with proper use. It’s therefore important that you have to be mindful of proper maintenance and power-saving techniques to maximize your battery’s life.An important factor to consider is how much battery life you’ll need on your laptop. No matter how much battery you have, using your built-in DVD drive a lot and having a 17″ screen will drain it faster. Battery technology–just like any technology–is improving all the time.
Yesterday’s laptops featured Ni-Cad (Nickel-Cadmium) batteries, which poisoned the environment when disposed of improperly, didn’t offer much up-time (comparatively), and had the annoying habit of remembering how long you had used them and refusing to work any longer the next time. Then there were NiMH (Nickel-Metal-Hydride) batteries; they offered longer life, better efficiency, and no memory problems. Accu HITACHI C 5D
The current generation of laptops still uses Lithium Ion batteries. These batteries offer a gain in efficiency over NiMH batteries, with an extremely low discharge rate (long shelf life when charged) and efficiency improvements over Lithium Ion batteries; movement towards new battery technology has slowed, however. Even though improvements are made, we are getting to the point where packing so much energy into a tiny space is getting a bit dangerous. If you’ve ever seen news footage of a laptop computer igniting, that’s what could happen if the battery goes haywire. Don’t be too worried about it, though, as that is an extremely rare event. A single fire typically causes thousands of batteries to get recalled, though, since there is little room for error where a burning laptop is concerned. Accu HITACHI CD 4D
Some laptops claim up to 5 hours worth of up-time on one battery–take this figure with a grain of salt. That’s probably how long the battery would last if you put on the blank-screen screen saver and didn’t touch it for 5 hours. Expect more in the range of two or three hours per stock battery under continual use. If you plan to be on flights, trains, or buses for 10 hours at a time, buy some extra batteries, make sure you have a power plug handy, or make sure you get a model that has a nice add-on battery feature that can hold a lot of juice.
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Some designs offer a battery plate that fits on the bottom of the laptop, adding size and a few pounds but offering many more hours of battery life. If that’s what you need, check around for interesting battery setups. Several manufacturers also offer laptops with expansion slots that will accept a variety of peripherals, including a second battery–that second battery can double your battery life. If your laptop doesn’t offer that, you have to buy another of the same battery and may want to make sure you get a battery charger to go with it so that you can charge both batteries at the same time (one in the laptop, one in the charger). Obviously, that is not ideal. If you need it, just go for a model that offers the battery capacity you want. Also, keep in mind that extra batteries can cost up to and overUS$200 apiece.
When selecting a battery, manufacturers will often list an amount of “cells,” where each cell has a certain capacity; thus a 9 cell has 50% more capacity than an equal model 6-cell battery. That is useful for comparing directly, but the story is more complex if you wanted to compare different batteries on different laptops. Batteries have a voltage rating (V) and milli-Amp hours (mAH), which, if multiplied together, give you milliwatt hours. For example, a 14.8 V battery with 4460 mAHgives you 66,000 milliwatt hours (66 watt-hours). You can compare batteries this way, but also keep in mind that different laptops have very different power requirements that vary based on the components and how well the operating system manages power consumption. Typically, bigger, heavier batteries will give you a higher watt-hour rating. A 6-cell battery may be the same form factor as a 9-cell, but the 6-cell will weigh less since there’s less chemical in it to hold onto that charge. Accu HITACHI WR 14DMR
If you are a mobile warrior, you will want the most cells and/or most watt-hours you can get into your model so you can go 5 or 6 hours without a recharge. It is so painful to run our of power before you are ready.
1.Replace the batteries be careful
Laptops now are used lithium ion batteries. There life are basically constant which is only 500 to 800 times. So if you use the battery for the laptop power frequently, the battery life due to internal batteries would be failure after 1 to 2 years. When we open the battery testing batteries demonstrated by one or two batteries damage. However, due to the other batteries are also almost the same, even if you replace the failure of the batteries, the battery back to normal in a short time, will soon be leaving for the failure of other batteries throughout the battery once again can not be used. Accu MAKITA T1022DW
So, can we solve the problem by replace all the laptops internal battery? In fact, this is difficult. Because in the original battery, the capacity of the batteries, the terminal voltage and internal resistance consistency because of its internal batteries good accurate matching. The batteries we bought in the market has not been tested and paired. In amateur conditions we can not be paired for the batteries, so its capacity, internal resistance or other parameters will inevitably vary. Inside the battery, the batteries are connected in series together charge (in most laptop battery is divided into two groups of eight batteries, four series and then parallel to form a battery pack), due to the charging of the battery current, as the smallest capacity batteries will first fully charged, the other battery is not yet sufficient, so the terminal voltage of the battery pack to reach the set voltage, the charging circuit will continue to charge the battery pack. Accu PANASONIC EY6220D In this way, the original fully charged batteries will overcharge. Laptop charging circuit to reduce charging time, charging current is quite large, so make batteries overcharge huge heat, so that the batteries inside the liquid temperature, increasing pressure on the internal electrolyte is easy to dry up or overflow , leading to a further decline in the capacity of the batteries, overstaffed or even an explosion. The total capacity of the battery by which the capacity of the smallest batteries decided, and this will cause a vicious cycle, after repeated charge-discharge capacity of the battery pack will be a significant decline, leading to the laptops using time.
The same time, a lot of laptop battery in order to prevent unauthorized users to open to replace the batteries have Smart protection chip and anti-openings line. As long as the battery case is open or remove the batteries from the battery circuit board intelligent protection circuit will stop the output of the battery. Even if we re-connected batteries back to the battery circuit board or closing the battery case, intelligent protection chip is still not restored. In this way, the battery will not be able to output. We need to re smart chip reset can solve this problem, amateur conditions, we can not be smart chip reset. Accu MAKITA T221D Therefore, replaceable batteries may cause permanent damage to the battery.
So how do we solve the problem of the battery? The best way is to buy a new original battery, but now a new original battery to hundreds or even thousands, so that spending is too high, exceeding the affordability of many consumers. However, there are some professional laptops repair stations, equipment and technologies that are good, and there are a number of repair stations and manufacturers of batteries there are long-term relationship, sophisticated matching factory battery.accu Toshiba Satellite L740 This will ensure the quality of maintenance. Change the price of the batteries in these places is about 300 yuan, although higher than the price of their own to replace the batteries, but the long-term use can protect battery. In addition, some repair stations also repaired the battery for half a year's warranty. In the use of the past six months, as long as the battery charge and discharge of about a hundred times, and the battery capacity and stability during this period, after the battery goes into stable, not easily damaged.
2.Maintenance of batteries has a knack
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In any case, the replacement of the batteries we need to pay a small price, so we should pay attention to maintenance in daily use the battery to extend battery life.
To maintain the battery, we must first reduce the number of battery, which means that when there is electricity, do not use the battery as much as possible. This can reduce the battery charge and discharge times, extend battery life. While this has brought some use for the inconvenience, but think every time you use the battery will need to pay two dollars, or work too hard.
3.Bnternal structure of Battery
Battery calibration procedures can extend the battery life has been a vexed issue. Support of people think that the battery calibration can eliminate the memory effect of the batteries and extend battery life. Opponents argue that now use lithium-ion batteries have no memory effect, therefore, the calibration procedure will only increase the battery charge and discharge times, to shorten the battery life. In fact, these two kinds of understanding are not comprehensive. Accu BOSCH 24618-01 Lithium-ion battery reduces the memory effect, but the memory effect still exists. Battery calibration is indeed able to reduce the memory effect, but this is not the most important, the main function of the battery calibration procedure is to establish a battery and control circuit of the contact, so that the control circuit can correctly identify the capacity of the battery, thus avoiding the battery charge or over-discharge phenomenon. Accu HITACHI CL 13D The same time, you can also ensure that the system shutdown before the battery dies, to protect the security of data. However, frequent use of the battery calibration procedure does increase the battery charge and discharge times. Therefore, we run a battery calibration procedure every three months or so on it. Accu DEWALT DC618
When we use the battery for laptop power supply or power adapter to charge the battery, do not unplug the laptops battery. Because the battery is charging or discharging state, the currents are quite large, if we try to plug the battery, can easily lead to spark not only result in the ablation of the contacts, the impact of current can cause the battery circuit board or The laptop charging circuit damage.