06-08-2012
Replace the tiny battery (CMOS battery) for time and bios maintenance - not the big battery for the whole box. Save your BIOS config BEFORE you replace the battery.
I don't know squat about Sony, but this happens on other boxes when the little backup battery goes South. Example: you kept the notebook in the closet for a year, and decided to start using it again.
Tips for knowing when the CMOS battery is getting weak - by Iowaprodigal - Helium
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IBAM(1) IBAM(1)
NAME
IBAM - the Intelligent Battery Monitor
SYNOPSIS
ibam [options]
DESCRIPTION
IBAM-0.3, the Intelligent Battery Monitor
(C) 2001-2004 Sebastian Ritterbusch
OPTIONS
-h, --help
displays help message
-v, --version
displays software version
-b, --bios
show bios apm guesses
-s, --seconds
displays times in seconds
-c, --correctseconds
displays changes in seconds
-r, --readonly
no files will be updated
-a, --all
show ALL information
--battery
show battery time
--batteryadaptive
show adaptive battery time
--batterybios
show bios battery time guess
--percentbattery
show battery percentage
--percentbios
show bios percentage
--charge
show charge time
--chargeadaptive
show adaptive charge time
--percentcharge
show charge percentage
--totalbattery
show total battery time
--totalbatteryadaptive show adaptive total battery
--totalcharge
show total charge time
--totalchargeadaptive
show adaptive total charge
--plot[=profiles]
use gnuplot to plot battery and charge graphs and plot the last <profiles> additional profiles
--plotderivations
same as above plus standard deviations
--plotdeviations
same as above plus standard deviations
--import
import V0.1 data from current directory
--profile
enable additional yet unused profiling
--noprofile
disable additional profiling
--credits
to everyone contributing to ibam
AUTHOR
This manual page was written by Martin Wuertele <martin@wuertele.net> for the Debian GNU/Linux system (but may be used by others).
2 IBAM(1)