Panasonic cf-28mcxxxxx Benutzerhandbuch

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The battery pack has a function for measuring, storing, and learning about battery ca-
pacity. Using this function properly to accurately display remaining battery capacity re-
quires that the battery pack be fully charged (charged to 100%), then fully discharged,
and then fully charged again.
Use the procedure presented below to fully charge the battery pack, then discharge it,
then charge it again. This procedure should be performed once after you purchase the
computer. As you use the battery pack over a long period of time, the remaining capac-
ity display may become inaccurate due to aging of the battery pack and other factors.
The procedure described below should be repeated.

Remove all peripherals (except for the battery pack and AC adapter).

  Choose [Start] - [Shut Down] - [Restart in MS-DOS mode], and then click [OK].

  Type the following after the MS-DOS prompt (C:\WINDOWS>).

battref  /g    Enter

  At the confirmation message, press   Y  .

The battery indicator blinks orange, the battery pack will be discharged fully and
the computer will power off automatically.

(full charge)
(Charging commences automatically.)

When the Battery Capacity refresh utility starts, it will take approximately 2.0
hours until the computer powers off automatically.

When the above operation is performed, do not turn the computer off.
Doing so will make it impossible to measure the battery capacity.