P870/P875
Chapter 5
Power and Power-Up Modes
The computer's power resources include the AC adaptor, battery pack and any internal batteries. This chapter provides details on making the most effective use of these resources, and includes information on charging batteries, tips for saving battery power, and information on the different
Power conditions
The computer's operating capability and battery charge status are affected by different power conditions, including whether an AC adaptor is connected and what the charge level is for that battery.
The LED in the table below refers to the DC IN/Battery indicator.
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| Power on | Power off |
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| (no operation) |
| AC adaptor | Battery fully | • Operates | • No charge |
| connected | charged | • No charge | • LED: white |
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| • LED: white |
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| Battery partially | • Operates | • Quick charge |
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| charged or no | • Charge | • LED: amber |
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| charge | ||
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| • LED: amber |
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| AC adaptor | Remaining | • Operates |
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| not | battery capacity | • LED: off |
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| connected | is above low |
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| ||
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| battery trigger |
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| point |
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| Remaining | • Operates |
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| battery capacity | • LED: flashes |
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| is below low |
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| amber |
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| battery trigger |
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| |
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| point |
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| Remaining | Computer shuts |
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| battery capacity | down |
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| is exhausted |
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User's Manual |