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Mobile Computing
User's Manual
4-3
Satellite P20
Version
1
Last Saved on 30/05/2003 13:57
ENGLISH using Euro_M.dot –– Printed on 30/05/2003 as T202014-EN
Charging Batteries
The battery needs to be charged before you can use it to power the
computer. You can charge the battery using your computer.
Charging the battery
To charge the battery while it is in your computer, plug the computer into
a live AC outlet. It takes approximately 4 hours to charge the battery to
full while the computer is off. It takes up to 12 hours or longer to charge
the battery to full while the computer is on -how long depends on what
other operations the computer is performing.
The battery only can charge a small current while the computer is
consuming full power.
The battery may not start charging immediately if:
■
The battery is extremely hot or cold.
To ensure that the battery charges to its full capacity, wait until it
reaches room temperature: 5°C to 35°C. (41°F to 95°F).
■
The battery is almost completely discharged.
Leave the power connected, and the battery should begin charging
after a few minutes.
Once a battery pack is fully charged, we recommend that you operate
your computer on battery power until the battery pack discharges
completely. Doing this extends battery life and helps ensure accurate
monitoring of battery capacity.