Method 1:
1, download the detection software of Master Lu from the Internet.
2. Click "Battery Status Information" on the left in the opened interface.
Method 2:
1, download BatteryMon. BatteryMon is a professional notebook battery detection software, which can detect the charging and discharging of the battery in real time. Unplug the power adapter before testing.
2. Click the "Start" button at the bottom left, and you can see that the status bar has changed from "Stopped" to "Running", and the sampling times at the bottom have changed from "0" to "1", indicating that the software has started to detect the battery.
3. There is a coordinate on the right side of the interface. The ordinate represents the percentage of the current battery remaining power, and the abscissa represents the battery service time. As time goes by, a diagonal line will appear in the coordinate area, representing the charging and discharging situation of the battery. The flatter the line, the longer the service time, and vice versa. In the battery data on the left, "Total Time" indicates the longest time that the software can be used when the battery is fully charged.
4. If you want to view other information about the battery, you can click "Battery Information" at the top of the software, where you can see other information about the battery.
A notebook battery is the battery in a notebook. Now using rechargeable batteries is one of the advantages of notebook computers over desktop computers, which can greatly facilitate the use of notebook computers in various environments.
Nickel-cadmium battery was first introduced, but this kind of battery has "memory effect", and it has to be discharged before each charge, so it is inconvenient to use. It was soon replaced by Ni-MH battery. NiMH not only has no "memory effect", but also can increase the power per unit weight 10%.
compose
Notebook battery is composed of shell and battery core, belonging to lithium-ion battery. Generally speaking, battery core refers to the number of batteries, and mAh refers to the capacity of notebook batteries.
The standby time of notebook battery is mainly determined by the mAh value. Generally speaking, the more batteries, the greater the mAh value and the longer the standby time. The life of notebook battery is mainly measured by the number of charge and discharge, and the qualified product quality is generally 500-600 times. Therefore, if the effective service life of the notebook battery is less than 2 years, the expired battery will age and the standby time will drop sharply, which will affect the mobility of the notebook computer.
References:
Baidu encyclopedia? Notebook battery
Detection method of notebook battery
1. Find "Attachments"-"Command Prompt" in the start menu, right-click and select Run as Administrator.
2. Enter the command: powercfg_energy, and the program will automatically start tracking the 60-second state of the system, analyze the obtained data and give a report. It is best not to operate the computer during this process.
3. After the analysis is completed, you will be prompted where the generated report is. This report will be an HTML webpage file, and we need to find it and open it with a browser.
4. Scroll the report to the last section to find the battery information. The following is a small report showing that my laptop battery has been in poor health after four years of use.
How to check whether the battery has been used in the new computer?
You can check whether the new notebook computer has been used by computer hardware, keyboard, serial number, production date and software.
The specific method is as follows:
1, check the computer hardware. See if the shell is worn, the hinge is loose, the appearance and screen are damaged, and check if the three guarantees are available.
2. look at the keyboard Are there any signs of opening on the appearance? Are there any fingerprints on the fuselage? The keyboard layer of the brand-new machine will have a layer of white dust-proof paper.
3. Check the serial number. Most notebooks have the same serial number on the body and battery. If they don't match, it means that the battery may have been replaced.
4. Check the production date: If the production date is still sold one year later, then this pc will be under pressure and can't keep up with the upgrading speed of the computer. It may have been used.
5. Test by downloading software. Plug in the power and turn on the computer. Download the detection software on the U disk in advance, then insert it into the computer and download it to the computer. Check whether the performance parameters of your notebook are the same as when you bought it. If not, the computer may have been used.
How to detect the quality of notebook battery
Notebook battery belongs to 3C lithium battery. Before assembly, the high-current shrapnel microneedle module can be used as a connected battery test module. When large current is transmitted, the stable current transmission capability is ensured in the range of 1-50A, and the current is not attenuated during transmission, and the voltage is constant, stable and fast. In the field of small pitch, it can adapt to the pitch value between 0. 1.5 mm-0.4 mm, and will not be stuck, so it has strong adaptability and connectivity.
The quality of 3C lithium battery requires the following methods:
1. Look at the appearance of the 3C lithium battery, observe whether the surface of the lithium battery is damaged or deformed, and see the fullness and workmanship of the 3C lithium battery;
2. Look at the hardness of 3C lithium battery. If you gently pinch the lithium battery by hand, the hardness is moderate. 3C lithium battery has no soft squeezing feeling and bulging, so it can be judged that the battery quality is better.
3. Look at the weight of 3C lithium battery, remove the outer packaging of lithium battery and weigh it. If there is a heavy feeling, it means that the 3C lithium battery is made of high-quality batteries.
4. In order to test the internal resistance and maximum current of 3C lithium battery, a multimeter with a range of 20A is used to short-circuit the two electrodes of the lithium battery. The current 10A is even higher, which can be kept relatively stable for a period of time. Small internal resistance and large discharge current indicate that the quality of 3C lithium battery is very good.
5.3C lithium battery will continue to discharge for ten minutes after charging, and the two poles of the lithium battery will not generate heat, which shows that the battery protection plate of 3C lithium battery is of good quality and the battery quality is good.
How to detect the health status of notebook battery
It's normal. The battery will be charged and discharged when it is tested before leaving the factory! Generally, it is normal within 3 times! More than three times is very abnormal.
Laptop power detection is divided into four steps.
Step 1: Check the charging time.
Installing PowerManger power management software on Thinkpad notebook computer
Double-click the power gauge icon in the lower right corner of the taskbar to open the battery management interface.
The number of cycles marked by the red line is the number of charge and discharge of the battery, and the first use time of the battery can also be seen.
Step 2: Check the voltage of the power adapter.
Just look at the boot screen and enter the bios. There is a battery message. Press F2 on the screen that appears when the computer is turned on, and you can enter.
Step 3: Check the health of the notebook battery.
Find "Accessories"-"Command Prompt" in the start menu, right-click and select Run as Administrator.
Enter the command: powercfg_energy, and the program will automatically start the 60-second state tracking of the system, analyze the obtained data and give a report. It is best not to operate the computer during this process.
After the analysis is completed, you will be prompted where the generated report is. This report will be an HTML webpage file, and we need to find it and open it with a browser.
Scroll to the end of the report to find the battery information. The following is my report. It can be seen that my notebook battery has been in poor health after four years of use.
Step 4: Check the loss of the notebook battery.
First, we download and install Master Lu's software on the computer.
Open the installed Master Lu software and it will be tested automatically.
Next, we click "Battery Information" to view the battery information.
We can also see directly in "Hardware Health", and the battery information is below.
Detailed information of the battery, including information on battery loss.