My VPCF1 was running fine on the battery yesterday and would charge / discharge fine. Today however, unless I use the mains connector, the laptop will NOT boot up on battery alone. The diagnostic shows the battery connected and fully charged and with no faults, yet when I disconnect the mains power, the laptop dies. This laptop is only 13 months old with light use. Would the battery die over just 24 hrs ? or could there be another reason the laptop cannot access the battery power ?
OK... I've tried the 2 options of uninstall drivers etc... and the power down and hold the on/off button for 30 sec... neither of these have worked.
Factory reset is very much point of last resort. I'd like to acesrtain if the battery is really dead, but I guess the best way to confirm this is to find another battery and slot into the laptop or to use a multimeter to measure any output from this dead one.