Notebook computer battery a long time, often charge less for electricity

(A) causes damage to the battery
Notebook computer battery a long time, often charge less for electricity, and even shows the battery is damaged, the specific performance of a larger resistance, the voltage across the charging up faster. So easy to charge control circuit is determined to have been filled, the capacity will naturally decline. Since the battery internal resistance is relatively large, the discharge voltage drop when a large, fast, so the system is easy to mistakenly believe that the voltage is not enough, lack of electricity. Comparison of the discovery of short battery life, should take appropriate measures.

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(B) of the battery refresh program restore the battery discharge time
Great brands have a laptop battery refresh program, we can use it to repair the battery. Example: a laptop IBMThinkpad390/262650 type, the distribution for the nickel-metal hydride battery (Ni-Mh) battery, as usual Chong discharge properly, causing the battery discharge time is shorter and shorter, leaving less than 5 minutes, if carrying a laptop to go to work, then it is very inconvenient, what can restore the battery discharge time?

For the above, we can use the IBM has launched a battery refresh program to refresh the batteries, discharge time to recover, the specific method is as follows.
(1) the use of AC power to the notebook computer, the first to ftp://fip. pc. ibm. com / pub / pccbbs / mobiles / isbr01ww. exe provided to download the IBM notebook computer batteries TP390/390e/390x refresh program.

(2) Restart computer, press F8 key to enter boot menu and select Safe Mode DOS.
(3) into the directory where the file you just downloaded, perform a battery refresh program isbr0lww, exe, reading the warning message, as required to insert the floppy disk, and then press the Enter key to execute the self-extracting operation.
(4) boot floppy disk with this computer, the screen appears StartingPC-DOS. . . Message.
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(5) follow the prompts to unplug the AC power, the program will automatically Ni-Mh battery discharge, the discharge is completed, the system will automatically shut down.

(6) The battery temperature is high at this time should not start right away, let the battery cool for a while, plug the AC power.

(7) Boot the computer with a floppy disk, Zheci Autoexec. bat file will automatically run the flash program, and asks the user whether to proceed. Select yes, press the Enter key.

(8) At this point, flash program to start to refresh the battery, the process soon, when the return to DOS prompt A:> when that refresh is complete.

(9) Turn off the computer, and recharge the battery until the light turns green so far.

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