Toshiba Tecra A3-S711 User Manual - Page 125

Charging time hours, Battery charging notice, Battery, Battery type, Power

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Power System Charging time (hours) Battery type Battery pack RTC battery Power on about 12 or longer about 24 Power off about 4 or longer about 24 with AC or Battery pack The charging time when the computer is on is affected by ambient temperature, the temperature of the computer and how you use the computer. If you make heavy use of external devices, for example, the battery might scarcely charge at all during operation. Refer also to the section Maximizing battery operating time. The same factors affect charge time. Battery charging notice The battery may not charge right away under the following conditions: ■ The battery is extremely hot or cold. To make sure the battery charges to its full capacity, charge the battery at room temperature of 10° to 30°C (50° to 86°F). ■ The battery is nearly completely discharged. Leave the AC adaptor connected for a few minutes and the battery should begin charging. Once a battery pack is fully charged, it is recommended that you operate the computer only on battery power until the battery pack completely discharges. Doing so extends battery life and helps ensure accurate monitoring of battery capacity. 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 case, follow the steps below. 1. Fully discharge the battery by leaving it in the computer with the power on until the power automatically shuts off. 2. Plug in the AC adaptor. 3. Charge the battery until the Battery indicator glows green. Repeat these steps two or three times until the battery recovers normal capacity. Leaving the AC adaptor connected will shorten battery life. At least once a month, run the computer on battery power until the battery is fully discharged, then recharge the battery. TECRA A3/S2 6-8

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TECRA A3/S2
6-8
Power System
Charging time (hours)
Battery charging notice
The battery may not charge right away under the following conditions:
■
The battery is extremely hot or cold. To make sure the battery charges
to its full capacity, charge the battery at room temperature of 10° to 30°C
(50° to 86°F).
■
The battery is nearly completely discharged. 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 case, follow the steps below.
1.
Fully discharge the battery by leaving it in the computer with the power
on until the power automatically shuts off.
2.
Plug in the AC adaptor.
3.
Charge the battery until the Battery indicator glows green.
Repeat these steps two or three times until the battery recovers normal
capacity.
Battery type
Power on
Power off
Battery pack
about 12 or longer
about 4 or longer
RTC battery
about 24
about 24 with AC or Battery pack
The charging time when the computer is on is affected by ambient
temperature, the temperature of the computer and how you use the
computer.
If you make heavy use of external devices, for example, the battery might
scarcely charge at all during operation. Refer also to the section Maximizing
battery operating time. The same factors affect charge time.
Once a battery pack is fully charged, it is recommended that you operate
the computer only on battery power until the battery pack completely
discharges. Doing so extends battery life and helps ensure accurate
monitoring of battery capacity.
Leaving the AC adaptor connected will shorten battery life. At least once a
month, run the computer on battery power until the battery is fully
discharged, then recharge the battery.