Texas Instruments 3000 WinSX - Manual (Page 52)

Handling the Battery Pack
3. When the Low Batt indicator light starts blinking and the audible alarm
starts beeping, update any work in progress and exit to the MS-DOS
prompt. Allow the battery to deep discharge by leaving the computer on
until the Low Batt, Power and all other indicators turn off.
You can turn off the beeper if it is irritating by pressing the Fn-Ctrl-F4
keys.
4. After the battery is discharged fully, recharge the battery completely by
connecting the AC Adapter as described earlier in this chapter.
The AC Adapter's amber indicator glows while the battery is charging.
The green indicator comes on when the battery is at least 90-percent
charged.
5. Keep the AC Adapter connected for another 12 hours (or longer if more
convenient) after the AC Adapter's green indicator comes on to trickle-
charge the battery.
6. After the 12-hour trickle charge is complete, unplug the AC Adapter
and repeat steps 2, 3, and 4 one more time.
Note: If the AC Adapter's amber indicator turned off after at least 2.5 hours of fast
charge while the computer is turned off, you can reduce the trickle charge in step 5 to 1.5
hours. If the battery seems to refuse to accept a full charge, trickle-charge for 12 hours.
The battery pack should now be fully conditioned. Conditioning should be required only
two or three times over the life of the battery if you follow the suggestions in this section
for battery care. Note that all NiCad batteries eventually wear out, but usually only after
many, many hundreds of charge cycles if you take proper care of them.
Getting Started 3- 11