Satellite U840/U800 Series
Charging the batteriesWhen the power in the battery pack becomes low, the DC IN/Battery indicator will flash amber to indicate that only a few minutes of battery power remain. If you continue to use the computer while the DC IN/Battery indicator flashes, the computer 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 DC IN 19V jack and plug the other end into a working outlet - the DC IN/Battery indicator will glow amber while the battery is being charged.
Charging Time
The following table shows the approximate time required to fully charge a discharged battery.
Battery type | Power off | Power on |
Battery pack | 4.5 hours | 6 hours |
(54Wh, 6 cell) |
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RTC battery | about 24 hours | about 24 hours |
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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.
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°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 DC IN/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.
User's Manual |