|Ⅰ Laptop battery introduction|
|Ⅱ Internal construction of laptop battery|
|Ⅲ Types of laptop battery|
|Ⅳ How to increase laptop battery life?|
The laptop battery consists of a housing and a battery. The battery is a lithium-ion battery. Generally, the battery cell refers to the number of cells in the battery, and mAh refers to the capacity of a laptop battery.
The mAh value mainly determines the standby time of the laptop battery. In general, the more the number of cells, the larger the MAH value, the longer the standby time. The number of charge and discharge mainly measure the life of the laptop battery. The quality of qualified products is generally 500-600 times. Therefore, the effective use period of the laptop is within 2 years. The expiration battery will be aging, and the standby time has dropped sharply and affects the mobility of the laptop.
The internal structure of the laptop battery mainly has the battery core, charge and discharge control circuit board and temperature feedback line. The battery core is the energy center of the battery, which is responsible for countless charge and discharge work. The circuit board is to controls the charging and discharging of the batteries. Since the laptop battery has a large capacity, it is necessary to pass a dramatic chemical reaction during the use process. Therefore, for safety, the temperature of the strict control of the battery is not too high. The temperature feedback line has played an important role here. When the temperature exceeds a certain degree, the circuit board is delivered by the temperature feedback line, and the charging can be cut immediately.
The laptop battery mainly uses 18650 specifications. The battery cell length is 65mm and the diameter of 18mm, which is widely adopted in the laptop battery. Of course, there are also other laptop batteries that are subject to the styling and volume of the battery core.
The battery used by the laptop is mainly divided into three types: 1. Ni-nickel-cadmium battery; 2. NiMH battery; 3. Lithium battery. We generally expressed them as nickel-cadmium Ni-Cd, nickel-hydrogen Ni-MH, lithium Li.
At present, there are different laptop batteries including 3 core, 4 core, 6 core, 8 core, 9 core, 12 core, etc. Simply put, the 4-core battery can last for 2 hours, and the 6 core is 3 hours, and so on. Of course, the larger the number of cores, the longer the battery life.
1) Unplug the battery to see the number of contacts. For example, 4 contacts mean 4 cores.
2) Take a look at how much V, such as 14.4V, then divided by 3.6, proves that 4 batteries are connected in series. Then look at the capacity of the entire battery, such as 4400mAh. It demonstrates that there are two groups of series battery packs. Because small cell capacity is 2000-2200mAh or even more, two groups must be together to reach 4400mAh. According to these two judgments, this battery is 4 × 2 = 8 core.
In fact, the laptop battery can only last for about two hours. How to extend its use time and life, which is undoubtedly a problem. There are a variety of methods and techniques to increase laptop battery life, which require us to learn and apply more in usual use.
we can save battery energy by setting the power management solution. The system enters the sleep state after a while when we temporarily do not use a laptop
A simple way to make the laptop system quickly enter the sleep state, that is, close the display directly. Pressing the display just to raise your hand, you can give your laptop immediately to sleep, effectively saving battery energy consumption. When you need to use it again, as long as you open the display, the system will automatically return to the status before the operation.
The TFT screen is the most power-hungry component in notebook computers. In order to reduce the electric energy consumed during the use of the battery, the laptop manufacturers generally have no choice but to turn down the screen brightness.
In some laptop's power management settings, you can customize the brightness of the screen. Most laptops can adjust the brightness of the screen through a specific shortcut key, generally 6 to 8 brightness adjustment.
Most people do not necessarily pay attention to the energy-saving function of the computer. For laptops that need to be powered by batteries, the use of energy-saving functions should be valued. How to design more energy-efficient? This is not a problem that the user needs to solve. The user can do the energy-saving options that effectively use the energy-saving option on the computer settings.
The energy-saving function is a CPU technology that allows the performance of laptops to achieve the best balance between battery usage time. Most new models of laptops have supported the energy-saving technology of the CPU in the BIOS. The default state is open. If not open, just enter the BIOS, open the support option.
Users should pay attention to two places in the energy-saving settings: First, there is a setting of energy-saving mode in the computer's BIOS setup. The most important is that there are many energy-saving settings and operations in the operating system. When the microcomputer system is actually implemented, the energy-saving settings in the Windows system should be preferred in the settings in CMOS.
In CMOS settings, there is a "Power Savings" in which multiple options such as "Maximum Battery Life" and "Maximum Performance". "Maximum Battery Life" is the default energy-saving mode setting. There are several states of the energy-saving mode of laptops, such as IDLE Mode, Standby Mode standby (wait) mode, Suspend mode suspension (sleep) mode. These settings on the laptop can adjust the power consumption.
For general users, energy-saving management may operate more simple in the Windows system. In Windows Help files, under the Manage Hardware and Software, there are two content related to the laptop energy-saving: "Management Energy Consumption" and "Managing Power Supply" in the "Using Portable". Read these contents before performing Windows energy-saving settings.
In Windows's Control Panel, click Power Management to open the Power Management Properties dialog. In the Power Management Properties dialog, "Power Sample" should be set to "Portable / Laptop", and arrange the "System Waiting", "Close Monitor", "Turn off the hard disk". Different computers can manipulate some differences. Finishing the detailed settings according to the functionality of the computer itself and the Windows Help file.
Setting the battery power alarm function can give a prompt in time to save information. The method is to click "Control Silver", double-click the "Power" option, click "Alert" menu bar, "Battery Warning" column Windows 98 defaults to 10%, "Battery Serious Shortage Alarm" column Windows 98 defaults to 3%. We can make appropriate modifications as needed. Click the [Alert Response] button of both, select "Sound Alert" and "Display Messages". When the battery is used to alarm the boundary, a warning window is automatically jumped, and the buzzer issues alarm to prompt the user to save information in time. Finally, click the [OK] button to exit the power management settings.
In addition to Windows built-in power management functions, there are many tool programs to monitor battery usage. For example, PowerCenter is a power monitoring tool. Only 800KB is the software specially designed for laptops. In addition to displaying battery quantity percent, PowerCenter is sometimes used in time.
Keep the contact points of the laptop battery and the inside of the battery cover clean. If you do not use a battery for a long time or not using a notebook, you must take the battery from your notebook and completely discharge it, and store it in a dry, cool environment. In addition, try to avoid storage of a battery with a general metal article (especially magnetic object) to avoid oxidation or electromagnetic interference of the battery.