Charging The Battery; Charging Time - Toshiba WT8-A series User Manual

Charge the battery pack only in an ambient temperature between 5 and 35
degrees Celsius. Otherwise, the electrolyte solution might leak, battery
pack performance might deteriorate and the battery life might be
shortened.

Charging the battery

When the power in the battery pack becomes low, the tablet will enable
Hibernation Mode so that you do not lose any data, and automatically turn
itself off.
You must recharge a battery pack when it becomes discharged.
Procedures
To recharge a battery pack, connect the AC adaptor to the Micro-USB port
on the tablet and plug the other end into a working outlet.

Charging Time

The following table shows the approximate time required to fully charge a
discharged battery.
Battery type
Battery pack (20Wh, 2 cell)
Please be aware that the charging time when the tablet is on is affected by
ambient temperature, the temperature of the tablet and how you are using
the tablet - if you make heavy use of external devices for example, the
battery might scarcely charge at all during operation.
Battery charging notice
The battery may not begin charging immediately under the following
conditions:
The battery may have a rapid decrease in operating time when you try to
charge a battery under the following conditions:
User's Manual
The battery is extremely hot or cold (if the battery is extremely hot, it
might not charge at all). To ensure the battery charges to its full
capacity, you should charge it at room temperature of between 5°C to
35°C (41°F to 95°F).
The battery is nearly completely discharged. In this instance you
should leave the AC adaptor connected for a few minutes and the
battery should begin charging.
The battery has not been used for a long time.
Power off
about 5 hours
Power on
about 5~12 hours
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