Panasonic CF-71 Series Toughbook Reference Manual

Also see for CF-71 Series: Operating instructions Reference manual Operating instructions Reference manual Reference manual

22The battery pack has a function for measuring, storing, and learning about battery capacity.Using this function properly to accurately display remaining battery capacity requires that thebattery pack be fully charged (charged to 100%), then fully discharged, and then fully chargedagain.Use the procedure presented below to fully charge the battery pack, then discharge it, thencharge it again. This procedure should be performed once after you purchase the computer. Asyou use the battery pack over a long period of time, the remaining capacity display may becomeinaccurate due to aging of the battery pack and other factors. The procedure described belowshould be repeated.Attach the battery pack, then connect the AC adapterRemove all peripherals (except for the battery pack and AC adapter).Once the battery indicator turns green, use the Battery Capacity re-fresh utility to fully discharge the battery packCharge the battery pack until the battery indicator turns green (fullcharge)When the Battery Capacity refresh utility starts, it will take approximately 2.5 hoursuntil the computer powers off automatically.Battery PowerAccurately Displaying Battery Capacity121 Choose [Start]-[Shut Down]-[Restart in MS-DOS mode], and then click [OK].2 Type the following after the MS-DOS prompt (C:\WINDOWS>).battref /g Enter3 At the confirmation message, press Y .The battery indicator blinks orange, the battery pack will be discharged fully and thecomputer will power off automatically.CAUTIONWhen the above operation is performed, do not turn the computer off.Doing so will make it impossible to measure the battery capacity.NOTE3(Charging commences automatically.)