How to fix a laptop battery

First, the cause of battery damage

Laptop battery used for a long time, often charged with electricity, or even show that the battery has been damaged, the specific performance is the internal resistance, in charge at both ends of the voltage rise relatively fast. In this way the charging control line is judged as already full, and the capacity is naturally declining. Because the battery resistance is relatively large, discharge voltage drop amplitude, speed, so the system is easy to mistake the voltage is not enough. When the battery working time is found to be relatively short, the corresponding measures should be taken.

Second, use the battery to refresh the program to restore the battery discharge time

Most branded laptops have a battery refresh program that we can use to repair batteries. For example: Notebook computer, with the battery for Ni-MH (NI-MH) battery, due to improper charging and discharging, resulting in the battery discharge time is getting shorter, only less than 5 minutes, if you carry a laptop out of work, it appears very inconvenient, what method can restore the battery discharge time?

In view of the above situation, we can use the notebook of the introduction of the battery refresh program to refresh the battery, so that it restores the discharge time, the specific methods are as follows.

(1) The use of alternating current to power the notebook computer, first to the notebook computer website to download the Refresh program.

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

(3) Enter the directory of the file you just downloaded, perform the battery refresh program, read the warning message, insert the floppy disk as required, and press ENTER to perform the self-extracting operation.

(4) Use this floppy disk to boot the computer, the screen appears prompts the information.

(5) As prompted unplug AC power, the program will automatically ni-mh battery discharge, after discharge, the system will automatically shut down.

(6) Because at this time the battery temperature is high, should not be turned on immediately, let the battery cool for a while, plug in AC power.

(7) Boot the computer with a floppy disk, the file will automatically run the Refresh program, and ask the user whether to proceed.

(8) At this time, the refresh program began to refresh the battery, the process is very fast, when back to the DOS prompt a:>, indicates that the refresh has completed.

(9) Turn off the computer and charge the battery until the indicator turns green.

(10) The above process repeats 3 times to obtain the best effect.

In addition, many lithium battery failure is the battery pack of a power-saving core failure caused, this phenomenon can not be avoided. Because the batteries of each battery can not be exactly the same nature, with a long time some of the poor quality of the beginning of aging, and destroy the Whole (series) of the discharge curve. Interested and capable readers can try to open the battery pack, with the help of a multimeter, can quickly find damaged batteries (voltage anomalies). If the conditions permit, according to the corresponding parameters of the battery replacement of the qualified product can be.