I have a HP DV1000, equipped with Intel P-M 1.8GHz and a twelve-cell battery. In the power meter option of Windows XP, the twelve-cell battery capacity always REDUCES to 98% in about 3~4 days, even though the AC power is plugged to the computer all the time.
What I have tried:
1). Discharged the battery capacity below 10%, and then fully charged it to 100%
2). Followed the procedure to calibrate the battery pack, which is instructed in the manual.