Toshiba P750, P755, P750D, P755D Time, Battery charging notice, Battery, Battery, Power on, Power off, Battery type, Charging time (hours), Monitoring battery capacity

Power and Power-Up Modes

Time

The following table shows the approximate time required to fully charge a discharged battery.

Charging time (hours)

Battery type	Power off	Power on
Battery pack (48Wh, 6 cell)	about 3.0	about 10.0
Battery pack (61Wh, 6 cell)	about 4.0	about 10.0
Battery pack (98Wh, 12 cell)	about 5.0	about 10.0

Please be aware that the charging time when the computer is on is affected by ambient temperature, the temperature of the computer and how you are using the computer - if you make heavy use of external devices for example, the battery might scarcely charge at all during operation. Please refer to the section Maximizing battery operating time for further information.

Battery charging notice

The battery may not begin charging immediately under the following conditions:

■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° 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 indicator may show a rapid decrease in battery operating time when you try to charge a battery under the following conditions:

■The battery has not been used for a long time.

■The battery has completely discharged and been left in the computer for a long time.

■A cool battery is installed in a warm computer.

In such cases you should follow the steps as detailed below:

1.Fully discharge the battery by leaving it in the computer with the power on until the system automatically turns itself off.

2.Connect the AC adaptor to the DC IN 19V jack of the computer, and to a wall outlet that is supplying power.

3.Charge the battery until the Battery indicator glows white.

Repeat these steps two or three times until the battery recovers normal capacity.

Monitoring battery capacity

User’s Manual 6-6