Compaq Armada M300 Series Reference Manual page 134

Solving Battery Problems
Problem
Computer shut down and
work in memory was lost
when a battery pack that
was the only power source
available to the system was
replaced.
Date and time must be
reset each time the
computer is turned on.
Battery light does not turn
on to indicate that battery
pack is charging; battery
pack does not charge.
Battery charge does not last
as long as expected.
Battery charge displays do
not accurately report the
charge remaining in a
battery pack.
Continued
Possible Cause
The computer was not
turned off before replacing
the battery pack.
The real-time clock battery
has reached the end of its
useful life.
The battery pack
has reached the end of its
useful life.
Battery pack was exposed
to temperature extremes.
Battery pack is already fully
charged.
Battery conservation
settings, practices, and
procedures are not being
used.
Battery pack has partially
self-discharged.
Battery pack is being
exposed to temperature
extremes.
The battery pack requires
recalibration.
The battery pack
has reached the end of its
useful life.
Solution
Restore power, then turn
on the computer with the
power switch.
Restore power, then turn
on the computer with the
power switch.
Replace the real-time clock
battery. Refer to Chapter 13
for procedures.
Replace the battery pack.
Allow time for the battery
pack to reach room
temperature.
No action is necessary.
Refer to "Conserving
Battery Power" in Chapter 3
Refer to "Storing the Battery
Pack" in Chapter 3.
Keep battery pack within
the recommended
operating or storage
temperature ranges.
Refer to Appendix D for
operating ranges
or to "Storingthe Battery
Pack" in Chapter 3 for
storage ranges.
Refer to "Calibrating a
Battery Pack" in Chapter 3.
Replace the battery pack.
Troubleshooting 15-5