Sharp PC-A800 Series Manual page 43

Battery Charging
The battery pack begins charging anytime your computer is connected to AC power
using the AC adapter.
If the battery pack is fully discharged and your computer is turned off or in standby
mode, the battery pack fully recharges in about 2 hours.
If the battery pack is fully discharged and your computer is turned on, the battery
pack fully recharges in about 4 hours.
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Your computer monitors the internal temperature of the unit. If the
unit gets critically hot, battery charging (which generates some heat)
is interrupted until the temperature decreases. This can account for
slightly longer battery charging times.
You can track the charging status of the battery pack using the battery indicator
located next to the power indicator. The battery charge indicator shows the following
conditions:
Tri-color (green/red/orange) Battery Indicator
Icon Lamp State
Turned on orange
Turned on green
Turned on red
Flashing red
Flashing orange
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Status
Battery is charging
Battery is fully charged
Battery low warning
Critical battery warning
Abnormal condition – for
example the battery may be
installed incorrectly