Battery repair: Use the battery refresh program launched by IBM to refresh the battery and restore its discharge time. The specific method is as follows. (1) Use AC power to power the laptop and download the provided laptop battery refresh program. (2) Restart the computer, press F8 to enter the startup menu, and select safe DOS mode. (3) Enter the directory where the file just downloaded is located, execute the battery refresh program isbr0lww,exe, read the warning message, insert the floppy disk as required, and then press Enter to perform the self-extraction operation. (4) Use this floppy disk to boot the computer, and the screen will display the prompt message starting pc-dos... (5) Unplug the AC power supply as prompted, and the program will automatically discharge the NI-MH battery. After the discharge is completed, the system will automatically shut down. (6) Since the battery temperature is high at this time, you should not turn on the computer immediately. Let it cool down for a while, and then plug in the AC power supply. (7) Use the floppy disk to boot the computer. This time the autoexec.bat file will automatically run the refresh program and ask the user whether to proceed. After selecting yes, press Enter. (8) At this point, the program starts to refresh the battery. The process is very fast. When you return to the DOS prompt a:>, it means that the refresh is complete. (9) Turn off the computer and charge the battery until the indicator light turns green. (10) Repeat the above process 3 times to get the best effect.
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