Dell notebook win7 system battery charging does not charge the reason for troubleshooting and repair methods

Reason analysis:

1, software problems

In general, many computer brands such as Dell, Lenovo, Sony, etc., will be equipped with power management software for their notebooks. If some kind of “battery protection mode” is enabled, the power management software will prevent the battery from being charged and discharged after detecting that the user uses AC power to extend battery life.

So, if you find that your notebook is not charging, you can first enter the relevant power management software, turn off the battery protection mode or check the disable charging option, if the hardware is no problem, the battery can be charged. .

2, the hardware itself has problems

The battery's own hardware failure, usually, we can use the restart computer, re-plug the battery to determine, if the battery still can not be charged, may wish to install some Hardware detection application to obtain approximate battery loss reference information. If it is determined that the battery hardware is faulty, do not open it or try to repair it yourself. There is a certain risk. It is recommended to take it for repair.

Security Repair Method:

When you enter the bios in the Dell laptop, you will usually find the <quo;start battery calibration" option in the power project, ie “Start Battery Repair”, Generally speaking, the user will first be reminded to connect the power adapter for full charging, and then the text will prompt the user to disconnect the AC power. The win7 system will continue to discharge the notebook until the battery is completely exhausted, after which the notebook will automatically shut down, we can Connect the power adapter for charging, but do not turn it on. After the charging indicator is off, the whole process is completed.

Note: Bios battery repair process may take 5 hours, so be sure to do it when you don't need to use your notebook. If this still does not improve the battery status, then you can only say this battery. Estimated to be broken, you can send it for repair or buy a new original battery.

For battery charging failure, win7 home Xiaobian also compiled some enthusiastic users to share the maintenance experience for everyone, for your reference:

1, the battery has been aging is also possible. The general battery is used for about 3 years, and it is basically aging, even if it is a lithium battery. Go to the repair shop to check it out.

2, generally need to wait for the battery to use about 20%, you need to charge, do not wait until 0, too hurt the battery.

3, check the battery to see if the line is loose, the connection is not strong.

4, if the line is normal, or can not charge, you can see if the battery board of the battery charger is broken, try another.

5, if the line is normal, the charger is good, it may be that the circuit board inside the computer has failed.

Special attention is: sometimes the power adapter problem, the bad situation is relatively small, if there is a multimeter, you can test the output voltage.