Toshiba Satellite A55 - Manual (Page 46)

46 Mobile computing
information. It maintains this information for up to a month
while the computer is turned off.
The RTC battery may have become completely discharged
while your computer was shipped, resulting in the following
error message during startup:
BAD RTC BATTERY
BADCHECKSUM (CMOS)
CHECK SYSTEM
The above error message may vary by computer model.
The RTC battery does not charge while the computer is turned off
even when the AC adapter is charging the computer.
The RTC battery charges when the computer is powered on.
Monitoring battery power
The computer’s main battery light gives you an indication of
the main battery’s current charge:
❖ Glows amber while the main battery is being charged
(AC adapter connected).
❖ Glows green when the main battery is fully charged.
❖ Is unlit when the battery has discharged, the battery is not
charging, or the AC adapter is not plugged into the
computer or AC outlet.
Battery life and charge time may vary, depending on power
management settings, applications and features used.
❖ Flashes amber when the main battery charge is low and it
is time to recharge the main battery or plug in the AC
adapter.
If the AC power light flashes amber during charging, either the
battery pack is malfunctioning, or it is not receiving correct input
from the AC power supply.
Disconnect the AC cable and remove the battery pack. See
“Changing the main battery” on page 47 for information on replacing
the main battery.