IBM ThinkPad 380, Руководство пользователя

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Battery-Powered Operation
Charging the Battery Pack
Note:
When you charge the lithium-ion
battery pack, the battery pack
temperature must be at least 10°C
(50°F).
You can charge the battery pack when the AC Adapter is connected
to the computer and the battery pack is installed. You must charge
the battery pack in any of the following conditions:
When a new battery pack is purchased.
When the battery status indicator starts blinking.
Charging with the AC Adapter
Note:
When carrying your computer without
the AC Adapter, carry a fully charged
battery pack with you for maximum
operating time.
Important
If the battery pack is new or has not been used for a long time, it
will not be fully charged with only a single charging. You will
have to completely use it up, then recharge it three to six times
to maximize battery operating time.
The following describes how to recharge the battery pack with the
AC Adapter when the computer is turned off:
1
Make sure the computer is turned off, and a new or the
discharged battery pack is installed in the computer.
2
Connect the AC Adapter to the computer, and then to the
electrical outlet.
The battery pack charges after approximately 2.5—3.5 hours. (It
takes approximately 3.5—9.0 hours when charging while operating
the computer.)
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IBM ThinkPad 380 or 380D User's Guide