Whether laptop batteries can be corrected and repaired

Method one:

Set up(This is the most important step to get your laptop battery back to its best state. Please don't pay attention.)

1, turn on my computer -- control panel -- power options -- power use scenario, use the battery this time parameter is selected as never.

2, remove the two options of the alarm item, the purpose is to let the program do not respond when the battery drops to a few percents, the corresponding operation, so that the battery power of the notebook battery is truly discharged, This allows the battery itself to correct its minimum power level to synchronize with 0 % of the curve.

3, charge and discharge:

After the above setting, the battery is charged and discharged according to the full discharge principle.

Attention: the battery must be filled when charging, the best way is to shut down for a few hours or one night, and then unplug the power discharge until the computer automatically shut down. At least two cycles back and forth like this.

Method two:

The battery refresh program is used to restore the battery discharge time. Most branded notebook computers have battery refresh programs, and we can use it to repair the battery. For example, a notebook computer is equipped with a Ni-Mh battery. Due to improper charging and discharging, the battery discharge time is becoming shorter and shorter, leaving less than 5 minutes. If you carry a laptop to work, it will be very inconvenient. What method can restore the battery discharge time?

In view of the above, we can use the battery refresh program launched by the website of the notebook to refresh the battery to restore the discharge time. The specific methods are as follows.

(1) Use AC to power the laptop computer and first download the refresh program on the laptop website.

(2) Restart the computer, press F8 to enter the boot menu, and select Secure DOS mode.

(3) Enter the directory where the file has just been downloaded, perform a battery refresh procedure, read the warning message, insert the floppy disk as required, and then press the return button to perform a self-decompression operation.

(4) Use this floppy disk to guide the computer and the screen will show a prompt.

(5) Unplug the AC power supply according to the prompt, and the program will automatically discharge the Ni-Mh battery. After the discharge is completed, the system will automatically shut down.

(6) Due to the high temperature of the battery at this time, it should not be turned on immediately. After the battery is cooled for a while, the AC power supply is plugged in.

(7) Guide the computer with a floppy disk, and the file will automatically run the refresh program and ask the user if it is done.

(8) At this point, the refresh program begins to refresh the battery. The process is very fast when it returns to the DOS prompt A: & GT; , indicating that the refresh has been completed.

(9) Shut down the computer and charge the battery until the light turns green.

(10) The above process is repeated three times to get the best result.

In addition, the failure of many lithium batteries is caused by the failure of a core in the battery pack. This phenomenon cannot be avoided. Because the core properties of each cell cannot be completely consistent, some of the poor quality of the battery begins to age after a long period of time, and the overall(after series) discharge curve is destroyed. Interested and capable readers can try to open the battery pack. With the help of a multimeter, you can quickly find the damaged core(voltage anomaly). If conditions permit, according to the core of the corresponding parameters can be replaced with qualified products.

The page contains the contents of the machine translation.