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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 the steps two or three times until the battery recovers normal capacity.
Monitoring battery capacity
Remaining battery power can be monitored in the Power Save Modes window in
Power Saver of Windows.
NOTES: 1. Wait at least 16 seconds after turning on the computer before
trying to monitor the remaining operating time. The computer
needs this time to check the battery’s remaining capacity and
to calculate the remaining operating time, based on the
current power consumption rate and remaining battery
capacity. The actual remaining operating time may differ
slightly from the calculated time.
2. With repeated discharges and recharges, the battery’s
capacity will gradually decrease. Therefore, an often
used, older battery will not operate for as long as a new
battery even when both are fully charged. In this case,
Power Saver Utility will indicate a 100% charge for both
the old and new battery, but the displayed estimated time
remaining will be shorter for the older battery.
Care and use of the battery pack