Laptop battery calibration to extend battery life

Many brands of laptops have integrated battery calibration programs in their BIOS. The general English phrase is called "Battery Calibration", which means "battery calibration." Directly enter the BIOS to complete the battery calibration operation.

1. Power on, press F2 to enter the BIOS menu after the boot screen appears; use the left and right arrow keys to select to enter the Power menu.

2. Go to the Power menu and you will see the “Start Battery Calibration” option, select it and press Enter to execute.

3. At this time, the screen will turn blue, and there will be an English prompt. It is required to plug in the notebook's power adapter to charge the battery. When the battery is fully charged, the screen prompts the user to disconnect the power adapter. The notebook then continues to discharge the battery until the battery is exhausted.

4, this process takes a while, wait for the battery to run out after the automatic shutdown, then connect the power adapter to charge the battery, but do not boot. After the charging is completed (the charging indicator is off), the battery calibration process is completed.

Manual calibration method: let the notebook boot naturally discharge

Some notebooks can't find the battery calibration option in the BIOS. Can't such a notebook be battery-corrected? Through some of our manual settings, the notebook is discharged during normal operation until it is automatically shut down.

Principle of natural discharge

On the surface, the battery calibration process is to charge and discharge the battery, but its purpose is not to activate the battery as we imagined, because the current battery is a lithium battery, there is no activation problem. The real purpose of charging and discharging is to let the computer reconsider the battery capacity. Therefore, it is necessary to clean the electric power as much as possible, so that the work of the notebook is at a lower power, so that the effect of the correction is good.

1, the notebook in the operating system (Windows XP as an example), enter the "power options." Select "Power On" as "Always On" and set "Off Monitor" and "Close Hard Disk" to the shortest time, and the system standby should be set to "Never".

2. In the "Alarms" of the "Power Options", cancel all alarm options in order to completely drain the battery until it is turned off.

3. After setting, close all applications, turn off WIFI, unplug the power adapter, and use battery power. Do not do anything until the battery is completely turned off and then automatically shut down. After the discharge is completed, connect the power adapter and fully charge the battery, and complete the battery calibration.

If the battery life is not obvious after the laptop battery is calibrated, it may be caused by the aging of the battery itself. If the notebook's battery life is normal, battery calibration is not recommended.

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