Care And Use Of The Battery Pack; Charging The Battery Pack; Charging Time - Toshiba portege z20t-b User Manual

You can change the Real-Time Clock settings in the BIOS setup utility.
Refer to

Care and use of the battery pack

This section provides the important safety precautions in order to handle
your battery pack properly.
Refer to the enclosed Instruction Manual for Safety and Comfort for
detailed precautions and handling instructions.
Charge the battery pack only in an ambient temperature from 5 through 35
degrees Celsius. Otherwise, the electrolyte solution might leak, battery
pack performance might deteriorate, and the battery life might be
shortened.

Charging the battery pack

When the power in the battery pack becomes low, the Battery indicator
flashes amber to indicate that only a few minutes of battery power remain.
If you continue to use the computer while the Battery indicator flashes, the
computer enters Hibernation Mode so that you do not lose any data, and
automatically turn itself off.
You must recharge the battery pack when it becomes discharged.
Procedures
To recharge the battery pack, connect the AC adaptor to the DC IN 19V
jack and plug the other end into a working outlet. The Battery and/or
Second Battery indicator glows amber while the battery pack is being
charged.
When you connect the AC adaptor to the DC IN 19V jack on the keyboard
dock, the second battery pack inside the keyboard dock also begins
charging. It might take longer to fully charge the second battery pack
depending on the remaining system power.
You can charge only the second battery pack without docking the tablet
computer.

Charging Time

The following table shows the approximate time required to fully charge an
exhausted battery pack.
Battery pack type
Battery pack (36 Wh, 3
cell)
User's Manual
Troubleshooting for further information.
Power off
about 3 hours
Power on
about 3 - 10 hours
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