For notebook performance and functionality, vendors are constantly developed powerful laptop system stability, the design of the hardware, but also more humane, but one expensive laptop, the battery performance and use is often overlooked user when the battery when the use to care about their use and maintenance problems. In fact, the use of
laptop battery should be strengthened more use of the concept, we will not spend more money trying to buy a new battery. To make the books of the main people can better understand all aspects of
dell laptop batteries, the author's own experience in this to share with you. After all, the price of laptop battery is still very expensive, accounting for the overall price of the notebook for 10% -15%, the battery can be considered consumer goods, with a good battery is equivalent to saving money.
Laptop Battery
The type of laptop battery and materials:
Laptop battery is divided into four categories: 1. NiCad battery [Ni-Cd Ni-Cd], 2. Nickel metal hydride batteries [Ni-MH Ni-MH], 3. Lithium batteries [lithium Li, Li-ion Li-ion, Polymer lithium secondary Li-polymer], 4. fuel cell [Alkaline FC (AFC), phosphoric acid FC (PAFC), molten carbonate FC (MCFC), solid oxide FC (SOFC) and proton exchange membrane FC ( PEMFC), etc.]
Nickel-cadmium batteries (Ni-Cd)
The first notebook to use nickel-cadmium batteries are (Ni-Cd), because
HP Compaq Business Notebook 6710b Battery technology was not advanced enough, so nickel-cadmium batteries have many shortcomings of headaches, such as: bulky, heavy weight, small size, short life, there memory effect, etc. (My impression is that no one place). These are undoubtedly pursued with the notebook's lightweight, fast performance of the contrary. The current nickel-cadmium batteries have been eliminated, and nickel-cadmium notebook also break, and mention it there is not much need.
Nickel-metal hydride battery (Ni-MH)
Ni-MH battery is the most environmentally friendly battery, environmentally friendly countries are vigorously promoting the use of nickel-metal hydride batteries, as easy to recycle, and damage to the environment is minimal. However, compared to nickel-metal hydride batteries and lithium, there are some drawbacks. Long charging time, the weight of a more sedate, small capacity than lithium, as well as the memory effect. It's memory nickel-cadmium batteries, although not as big, but still need to discharge, the user must be exhausted before charging. However, nickel-metal hydride rechargeable
ACER Aspire 5715Z battery can reach more than 700 times, some good quality products up to 1200 times charge-discharge, long life than lithium is also very popular and the price.
Lithium battery (Li), lithium-ion battery (Li-ion), lithium polymer rechargeable lithium-ion battery (Li-polymer)
Lithium
Lithium a long time ago, when it was not safe when used often in charge when burning, bursting, perhaps because lithium is too active reason. Then there is the improved lithium-ion
hp compaq 6710b battery (Li-ion) by adding the element lithium can inhibit the active ingredient, which is the alternative to lithium batteries, its possession of anode lithium ion can absorb the carbon pole, discharge, lithium into lithium-ion, from the anode, lithium-ion battery cathode reach. Charge, the ionization of lithium atoms into the cathode in lithium-ion and electron and ion movement to the anode and electronic synthesis of lithium atoms. Discharge, the lithium atoms from graphite crystals into a lithium anode surface ionization ion and electron, and the synthesis of lithium atoms in the cathode. Therefore, the
lithium battery is always there to form lithium-ion does not appear to form lithium, of course, there will be no burning, explosion. Lithium ion moves between the anode and cathode, the electrode itself does not change. This is a lithium-ion batteries and lithium batteries difference in the nature. So that lithium really achieve a safe, efficient, convenient, and the old lithium also will be eliminated. Distinguish their approach is quite simple: from the battery of the label can be identified, the identity of lithium as Li, the lithium-ion battery Li-ion.
Lithium polymer rechargeable lithium-ion battery (Li-polymer) is that the three main structures in at least one or more polymer materials used as the main battery system. In shape, the polymer lithium secondary batteries with lithium ion can be thin, then it can be any area of any shape with a number of other advantages, it can meet the demand, made of any shape and capacity of the
Dell xps m1330 battery. In thickness, the thickness of polymer lithium secondary battery is about 2 ~ 4mm, and the current lithium-ion battery is a minimum thickness of 6mm, can be reduced by at least 50% of the thickness, can reach the minimum thickness of about 0.5mm.
Now, laptops and mobile phones using the so-called lithium, in fact, lithium-ion battery. Battery lithium-ion batteries can not be compared with other advantages: high voltage; small size, light weight, high energy; safe and fast charging; allows a wide temperature range; discharge current is small, a small memory effect (now some view is that lithium-ion battery completely no memory effect, which is a not responsible for the view), no environmental pollution and so on. Of course, lithium-ion
Dell vostro 1400 batteries also have their own shortcomings, that is, the price is high, fewer charge (charge and discharge times it is only 400-600 times, specially modified products, but 800 times. Charge a per day basis, the best The lithium battery also, but it laid off more than two years.), and battery-free interchangeability, voltage changes, the discharge rate of large, rapid decline in capacity, not high-current discharge.
Fuel cell
Fuel cell
Fuel cell [Alkaline FC (AFC), phosphoric acid FC (PAFC), molten carbonate FC (MCFC), solid oxide FC (SOFC) and proton exchange membrane FC (PEMFC), etc.] is a chemical battery, which uses released when the chemical reaction energy directly to electrical energy conversion. From this point of view, it and other chemicals such as manganese dry cell batteries, lead batteries, etc. are similar. However, it needs work to its continuous supply of active substances (substances that react) - fuel and oxidizer, which in turn, and quite different from other ordinary chemical batteries. Because it is the fuel energy released by chemical reaction into electrical energy output, so called fuel cells.
Fuel cell consists of three main components: the fuel electrode (anode); electrolyte (what we call the "fuel"); air / oxygen electrode (cathode). Initially, the electrolyte plate is the use of electrolyte into the porous plate to form, now being developed for the direct use of solid electrolytes. Work to the negative supply of fuel (hydrogen), the supply of oxidant to the cathode (air). Broken down into hydrogen ions in the negative H + and e-e-. Hydrogen ions into the electrolyte, while electrons towards the anode along the external circuit. Connected to the electricity load on the external circuit. In the cathode, the oxygen in the air with hydrogen ions in the electrolyte absorption arrived cathode electronic form on the water. This is the reverse reaction of water electrolysis process. Using this principle, the fuel cell can work continuously in the external transmission of
Dell laptop battery at work, by the external supply of fuel and oxidizer. Therefore, in principle, continue to enter as long as the reactants, reaction products continuously excluded, fuel cells can continuously discharge. Both the non-polluting fuel cells, high efficiency, wide application, with no noise and the advantages of continuous work, the work product of the fuel cell only water and heat, no noise, the basic non-polluting, efficient power generation system than the general is much higher, reach 43 ~ 58%, if the use of heat produced by the reaction, the efficiency can be up to 80%! On the other hand is worthy of improvement, fuel cell cost is too high (low temperature fuel cell is used to generate the hydrogen required for expensive platinum catalyst, to obtain the cost per unit energy than lithium batteries), by-products, heat issues, and added access to fuel. These are to be further addressed in future issues, but it is the future of laptop batteries painted a bright future.
So for the current battery,
Battery selection is not perfect. Requirements for different users can choose according to their needs the appropriate type of battery, of course, notebook manufacturers are also make great efforts to develop more powerful and more portable battery.
Lithium ion battery
Since appearing on the market penetration rate is now the highest lithium ion battery (Li-ion) Therefore, this article will focus on lithium-ion batteries. Know your
acer laptop battery you need to understand the following parameters: battery capacity, rated voltage, the normal use temperature.
Capacity, mainly from the size of the marked mAh battery to determine its Chinese name is ma. MA when the size is directly related to the use of laptop battery time, but it can not be generalized. Not to say that the greater the capacity laptop battery more sustainable supply and use, in the actual process of using endurance are closely related to the notebook's power consumption. We can imagine a laptop configuration, the greater the higher the energy, the greater the amount of computing power to run the faster passage.
Normal operating temperature is the temperature of the battery can work scope, the use of non-normal temperatures may be hazardous (explosive), and unnecessary trouble (leakage, a power outage).
Production date, which in some older models of laptop battery will appear, it is a direct reflection of this battery you can use the length of time, which is to determine the normal use of a battery time is very important parameter. So when we buy a
apple laptop battery to pay attention to its production date, even if the new battery put his life a long time there will be a corresponding reduction. For users who want to buy second-hand books should be aware of the aspects is the parameter.
How to distinguish whether the battery parameters? From the above picture we can see the type of battery used for the Li-ion, that is, lithium-ion batteries. Rated output voltage of 10.8V, battery is 4800mAh. Of course, there are manufacturers, production, the normal operating temperature (0 degrees -60 degrees Celsius), at present, the identity of such batteries are used, we can enlarge the image above to understand their own laptop battery some basic information.
The external structure of the battery for the books we can take a look at some of the above parameters, the internal structure, I believe many people are "afraid" to understand. After all, the price of laptop battery is still regarded as expensive.
In fact, the nature of laptop batteries and ordinary rechargeable batteries no different kind, but the major manufacturers have their own models for the appearance of the battery case processing, so that if you peel the shell laptop battery, its internal structure and common There is no difference between the battery pack, that mutual constraints common major brand
toshiba laptop batteries notebook computer is the greatest obstacle between the major brands of independent design.
The internal structure of the battery
The internal structure of the battery
A closer look at the internal battery, this battery is actually several groups of series-parallel circuit, in general, by a single battery notebook battery capacity and voltage requirements of the constraints, notebook batteries commonly used in parallel after the first series of measures to ensure its voltage and battery capacity, analogy, if a nominal 12.5V, 4000MAh laptop battery, generally so constituted: the first by three single-voltage 4.2V, 2000MAh batteries in series to achieve the standard 12.5V is known, then a group composed of the same cell and then parallel circuit, the battery's overall capacity to upgrade to 4000MAh, this battery is generally referred to 6CELL battery pack.
Six-cell battery
For internal and
external laptop battery and power supply have a certain understanding of the principle, we can be better in their daily work, the use of laptop battery life. Then I talk about himself in the use of batteries for notebook computers, some experience and recommendations.
First, get a new battery, many users of the approach is in accordance with business tips in lithium batteries used in the first three charge 12 hours or more. Online there are a lot of controversy on this, but I found that in actual use, in fact, for most laptop batteries is not necessary. Why? Merchant said this is the activity in order to fully activate the battery, fully wake up a new battery. For this reason it sounds very full and reliable, but we have not thought about it. If the
hp laptop battery manufacturers have not yet been fully activated on the appearance, then this can be said that only a semi-finished products. Not require each user to activate the battery to master the skills, in reality, impossible. Therefore, the battery factory has been a manufacturer of fully activated. Then ask the user to charge 12 hours will help the battery to use? In this I give a negative answer, the current laptop battery has improved power management circuits and charging management system, when the battery reached saturation, the control circuit automatically switches to short-circuit state, so the time is just after a waste of time only. How to activate the activity of the battery it? In fact, the activation of the battery manufacturer for overload protection in case there is no long the battery charge and discharge. Therefore, the first three charge 12 hours is unnecessary.
In time, many users use the battery very confused, what should or should not wait until the battery is completely discharged before charging. In fact, answering this question should be like, if you can do is certainly a good thing, but only if you took the trouble. Of course, I have here said is not referring to over-discharge, over-discharge is absolutely proven harmful to the battery, it will shorten battery life. Therefore, low power consumption when the notebook tips when you can charge a timely manner. Some businesses have repeatedly declared their lithium
dell inspiron e1705 battery have no memory effect, this is extremely irresponsible. So when you have more power when the battery or not charging as well, because the memory effect does exist.
Third, for how long the battery should not do, it is recommended into the 40-50% of the electricity, placed in the cold shade, the following parameters can explain the problem.
Storage temperature of 40% state of charge 100% state of charge
0 98% (a year later) 94% (one year)
25 degrees 96% (after one year) 80% (one year)
40 degrees 85% (a year later) 65% (one year)
60 degrees 75% (a year later) 60% (3 months)
(Percentage of saturation at the time relative to the initial value)
Of course, the best month to take the battery out with time, both to ensure the battery is a good state of preservation, they will not let the loss of damage to the battery power completely.
Fourth, in the notebook computer for use in "a month later should use a full charge and discharge" approach is necessary. Notebook computer lithium-ion
hp elitebook 6930p battery are generally charged with the management chip and control chip. Which management chip in a series of registers, there is capacity, temperature, ID, charge status, discharge frequency values. These values are in use will gradually change. Personally, I think, for use in notebook computers in "one month after the full charge and discharge should be a" major role in the practice is to fix these registers should be in the wrong value, making the battery charge control and battery nominal capacity consistent the actual situation. So this kind of work or can not be omitted, after all, expensive laptop or squeamish nobility.
The last to talk with, how to make the battery longer books. Since you bought a laptop is to use it, the battery is one of a consumable, with the use of an extension of time will inevitably move towards retirement. How to make
sony laptop battery last longer? Power-saving technology? Sleep? Suspend to disk? To reduce the screen brightness? All these methods seem to be able to increase the so-called extended. But you have not thought of, such extended sense? I drove my books do not run any program, not open display, not to hard to switch, I can not achieve longer. May think this ridiculous practice, use of laptop is used, not sounding furnishings. Thus I suggest that you make good use of this and not care about how to use laptop notebook. Perhaps, after two years of the notebook market is another world, your books have reached the retirement ranks. As long as we pay attention to the battery's daily habits, the normal use of the battery can, they can do no need to over-cautious.
