Full analysis of Notebook battery

Some consumers buy a notebook is a portable picture. In fact, compared to the desktop, the notebook in addition to easy to carry, there is a relatively large advantage, that is, the use of rechargeable batteries, so for the notebook's use of the environment has a lot of flexibility. So what do we know about batteries when we buy and use notebooks? In the following article will be introduced.

Notebook main supporting actor

Laptop battery performance is related to the duration of the notebook, which is generally more important for business people, they often need to hold a notebook for meetings or business negotiations, such as mobile Office applications. And for the general consumer, usually most of the power to use the notebook, so the choice of batteries and maintenance is not so concerned about, so that the notebook after a period of time, the battery's endurance greatly reduced, it is difficult to deal with some unexpected events.

Here I cite a not very appropriate example, the relationship between notebook and battery, like comedy star Stephen Chow and his voice actor Shi Banyu relationship, often overlooked, but it is its first supporting role, indispensable. Therefore, consumers in the choice to buy and use notebook, should understand, and learn to use and maintain the first part of the notebook. Next, the author from a few important aspects for you to introduce the contents of the notebook battery.

I. Overview of Notebook Batteries

Notebook computer was first equipped with Ni-CD battery, but the battery has a "memory effect", each charge must discharge before the use of a very inconvenient, and the battery has a large size, heavy weight, small capacity, short life and other shortcomings, so has been abandoned by the market. Then came the Ni-MH battery, but the battery also has a "memory effect", so it is gradually eliminated by the market. At present, the mainstream of the market is lithium-ion batteries and lithium polymer batteries, including lithium-ion batteries with small size, light weight, large capacity, low memory effect, short charge time and so on, so the use of large businesses. Lithium polymer batteries have many advantages, such as high energy density, miniaturization, ultra-thin, lightweight, high safety and low cost, and are a new type of battery.

Lithium Ion Battery

Lithium Polymer Battery

In the notebook's configuration table or when you purchase a notebook, users will see or hear a notebook with a battery of several cores. So what does this core mean? How do you tell a battery is a few core batteries? The core refers to the battery, lithium-ion battery is composed of shell, circuit board and batteries, generally speaking of several core battery refers to the number of batteries inside the core. The 6-cell battery means that there are 6 cores in the battery.

Batteries inside the battery core

As for how to judge a notebook battery is a few cores, there are two ways: the first method is to remove the battery to see the number of contacts, there are several contacts is a few core batteries, but this method is very low accuracy. The second method is much more accurate, to know the battery is a few cores, we first need to understand 2 data, one is the voltage of the battery, the other is the capacity of the battery. For example, the voltage of a battery is 11.1V, the capacity is 4400mAh, and then the voltage is divided by 3.7 to get 3, which proves that the 3-section small battery is connected together in a battery pack. Because the capacity of the small battery is 2200mAh, it must be two sets of parallel together to reach 4400mAh. Based on these two judgments, it is possible to know that the battery is 3x2=6-core.

11.1V 4400mAh 6-cell battery

Laptop standby time is mainly determined by the battery capacity, the more general number of cores, the larger the capacity. At present, notebook batteries are mainly divided into 3 cores, 4 cores, 6 cores, 8 cores, 9 cores, 12 cores, etc. So in simple terms, the larger the core number, the longer the endurance, of course, the higher the price, while the stability will be less than the electric core to almost. Notebook battery life is mainly measured by the number of charges, generally 500-600 times, so the battery effective use of most of the period of 2 years or so.

In the purchase of notebook, the general family users do not have to pay special attention to the notebook battery is a few cores, because the main household, the power supply is more stable, such as 3-core, 4-cell batteries are enough. And business people should choose the notebook battery reasonably, if the endurance time requirement is not high, can choose 6 core or 8 core battery, stability is high, and the endurance time and portability distribution is also more reasonable. If you require a long period of time, it is necessary to consider 9-cell or 12-cell batteries, but this notebook will be heavier than easy to carry, and the stability is slightly worse.

Second, the use of notebook battery skills

Reasonable use of notebook battery is an effective means to prolong battery life and carry out battery maintenance. Many users of notebook batteries for a long time, there will be full of dissatisfaction point, the duration of the period of decline, obvious aging phenomenon. Therefore, in the use of notebook batteries should pay attention to some tips, and avoid some misunderstandings. Next, the author introduced some notebook battery's use skill and the attention question.

1. Notebook battery charge for the first time

Many consumers in the purchase of notebooks, will be told by the dealer, the new notebook to repeat three times for the battery fully charged/discharge, charging time preferably in more than 12 hours, to carry out the activation of the battery. Such a word, so that the vast number of users into a misunderstanding. In fact, the notebook computer before the factory will be activated to the battery, in order to avoid the natural loss of the impact of battery efficiency, will remain a small amount of electricity. So the user gets the notebook is already activated, and then according to the dealer said to do, the notebook battery after completing a full charge will automatically stop working, not only does not need to keep the charge time to 12 hours, and this is to increase the loss of the battery. In general, the new laptop can only be used in the normal charge/discharge mode.

2, the intentional consumption of electricity

The battery can be used on a regular basis for about 1 months to make sure it is fully charged. To completely run out of battery power, you just have to keep your laptop running a lot of CPU-intensive tasks, such as playing some big 3D games, or watching high-definition video so that you can quickly use up the power in your battery, but don't forget to unplug it when you do these things. Of course, the battery discharge before each charge is not necessary, and is harmful. Practice has proved that: battery depth discharge will be meaningless to shorten the life of the battery, so it is recommended that in general, when the battery charge to 10% or so can be charged. However, it is best not to charge when the battery is still more than 30%, because the memory effect does exist.

3. Do not put the battery down when you connect the power

Many users are very confused, in the insertion of AC power, should not take the battery down to prevent repeated charge and discharge? In fact, this is not necessary. Because most of the current laptop power control circuitry is designed to be charged when the battery is less than 90% or 95%, and the time to reach this capacity through spontaneous discharge is 2 weeks to one months. And even if the battery is recharged again, the damage will not be much greater than the loss of the battery over a long period of time. At the same time, if the user in the operation of the notebook suddenly power off, not only the notebook has hurt, and the loss of data is irreparable serious consequences.

4. Learn to use power management

The power management function is built into Windows system, the user can set up different power plans according to different requirements, so as to save energy and reduce the loss of battery. In addition to the power management features built into Windows, some laptops also have power management software (such as Lenovo notebooks), which makes it possible to better control the charge and discharge of notebooks and increase the life of a laptop battery.

The Power management functional interface built into Windows systems

Third, the efficient use of notebook batteries

1, try not to use external equipment

For some external devices (such as USB devices, etc.), you should unplug them as much as possible to save power when using the battery. Because some equipment power consumption is very large, such as USB interface external hard disk, external optical drive and other devices, connecting these devices will greatly shorten the battery time to use.

2. Disable devices and interfaces that are not used temporarily

In general, some of the internal devices and interfaces in a notebook computer are not used frequently and can be temporarily disabled if you use a battery powered laptop. You can disable a device that you want to disable by double-clicking it in Device Manager.

You can disable temporarily unused interfaces in Device Manager

3. Turn off Screen saver

Many people think that the screen saver may not be the power consumption, in fact, some complex screensavers may be more power than normal operation, so it is recommended to use the battery do not turn on screen protection features.

4, disable the power alarm function

In the Control Panel, select the sound icon, and under the Sounds tab, disable the "Low battery Alert" and "Critical Battery Alert" features. When the battery is shown to be 0%, you can still use it for a while, and you should save the data immediately. Because the battery is completely depleted, the notebook computer will not give any hint to force the shutdown.

5, the energy-saving settings

In the power options that are built into Windows, or in the notebook's own power management software, reduce the performance of your notebook as much as possible. For example, dimming the brightness, the notebook does not operate after 5 minutes automatically into the sleep state and so on.

Four, notebook battery maintenance

In addition to the use of notebook batteries in the process of some of the details and techniques, in the day-to-day application should also pay attention to the use of laptop battery environment, which is also affecting the performance of batteries and maintenance of a very important aspect of the battery.

1, prevent high temperature, exposure

Room temperature (20-30 degrees) is the most suitable operating temperature of the battery, the temperature is too high or too low operating environment will reduce the battery's endurance time. In the test, the battery capacity will decrease by 10% ~40% If the battery is maintained at a relatively high temperature (about 60 degrees Celsius) for a long period of time under the charging 100% condition. Therefore, the high temperature will speed up the decline of battery capacity, reduce battery life and time.

High temperature state battery loss is big

2, maintain a stable voltage

In the use of notebook batteries, stable voltage is also very important. Users should try to avoid the laptop's power adapter and high-power electrical appliances (such as air-conditioning, television, etc.) to the same power outlet.

Should pay attention to maintain stable voltage

The reason is very simple, high-power electrical appliances on or off will form an instant high pressure and lead to battery damage, and a number of high-power electrical appliances using the same socket may also cause short-circuit problems, easy to occur in danger.

Summarize:

There are several purposes for this article:

First, introduce the basic knowledge of notebook batteries, so that users in the purchase of notebooks can be targeted to select the battery, and can clearly determine which battery is more suitable for their own.

Second, to clarify some of the mistakes in the use of notebook batteries, so that users can better understand how to use notebook batteries.

Third, the introduction of notebook batteries in the use of details and skills to help users better use of batteries, prolong the battery life.