Toshiba Portege R500 User Manual - Page 114

Monitoring battery capacity, Battery charging notice

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Power and Power-Up Modes 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° 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 15V jack of the computer, and to a wall outlet that is supplying power. 3. Charge the battery until the Battery indicator glows blue. Repeat these steps two or three times until the battery recovers normal capacity. Monitoring battery capacity Remaining battery power can be monitored using the following methods. ■ Clicking the battery icon on the task bar ■ Via the Battery Status in the Windows Mobility Center window ■ You should wait at least 16 seconds after turning on the computer before trying to monitor the remaining operating time. This is because the computer needs this time to check the battery's remaining capacity and then calculate the remaining operating time, based on this together with the current power consumption. ■ Please be aware that the actual remaining operating time may differ slightly from the calculated time. ■ With repeated discharges and recharges, the battery's capacity will gradually decrease. In view of this it will be noted that an often used, older battery will not operate for as long as a new battery even when both are fully charged. User's Manual 6-7

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User’s Manual
6-7
Power and Power-Up Modes
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° 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 15V jack of the computer, and to
a wall outlet that is supplying power.
3.
Charge the battery until the
Battery
indicator glows blue.
Repeat these steps two or three times until the battery recovers normal
capacity.
Monitoring battery capacity
Remaining battery power can be monitored using the following methods.
■
Clicking the battery icon on the task bar
■
Via the Battery Status in the Windows Mobility Center window
■
You should wait at least 16 seconds after turning on the computer
before trying to monitor the remaining operating time. This is because
the computer needs this time to check the battery's remaining capacity
and then calculate the remaining operating time, based on this together
with the current power consumption.
■
Please be aware that the actual remaining operating time may differ
slightly from the calculated time.
■
With repeated discharges and recharges, the battery's capacity will
gradually decrease. In view of this it will be noted that an often used,
older battery will not operate for as long as a new battery even when
both are fully charged.