HP A7V-M manual Calibrating a battery, Resolving a low battery level, Fully charge the battery

Resolving a low battery level

CAUTION: To reduce the risk of losing information when the computer reaches a critical battery level and has initiated Hibernation, do not restore power until the power lights turn off.

Resolving a low battery level when external power is available

▲Connect one of the following devices:

●AC adapter

●Optional expansion product or docking device

●Optional power adapter

Resolving a low battery level when a charged battery is available

1.Turn off the computer or initiate Hibernation.

2.Remove the discharged battery, and then insert a charged battery.

3.Turn on the computer.

Resolving a low battery level when no power source is available

▲Initiate Hibernation.

– or –

Save your work and shut down the computer.

Resolving a low battery level when the computer cannot exit Hibernation

When the computer lacks sufficient power to exit Hibernation, follow these steps:

1.Insert a charged battery or plug the computer into external power.

2.Exit Hibernation by briefly press the power button.

Calibrating a battery

Calibrate a battery under the following conditions:

●When battery charge displays seem inaccurate

●When you observe a significant change in battery run time

Even if a battery is heavily used, it should not need to be calibrated more than once a month. It is also not necessary to calibrate a new battery.

Step 1: Fully charge the battery

WARNING! Do not charge the computer battery while you are onboard aircraft.

NOTE: The battery charges whether the computer is off or in use, but it charges faster when the computer is off.

80 Chapter 5 Power management