HP Pavilion xt500 HP Pavilion ze5100 Series and HP Omnibook xe4400 Series Note - Page 35

To respond to a low-battery warning, To recharge the battery

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Note CAUTION Batteries and Power Management Using Battery Power To respond to a low-battery warning The computer automatically alerts you when the battery power drops to a critically low level. The computer first emits a high-pitched beep or displays a warning message. Then, if you do not restore power within a short time, the computer goes into Hibernate mode. Once the computer enters Hibernate mode in this way, you won't be able to turn it on again until you restore power by doing one of the following: • Replace the battery with a charged one. See "Step 1: Install the battery" on page 17. • Plug in the AC adapter. See "Step 2: Connect AC power" on page 19. If you plug in the AC adapter, you can continue to work while your battery recharges. To recharge the battery The AC adapter is normally warm whenever plugged into an AC outlet. The computer is normally warm while recharging. Don't recharge the computer in a briefcase or other confined space, or its battery could overheat. • Plug the AC adapter into the computer. To get the longest operating time, wait until the battery's charge is below 50% before recharging, and then charge it fully (100%). Charging can take up to approximately 3 hours. If you continue working while the battery charges, the charging time may increase to 4 hours. A fully charged battery can operate the computer for up to 3 hours, depending on your computer's model, power management settings, and level of use. Startup Guide 35

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Batteries and Power Management
Using Battery Power
Startup Guide
35
To respond to a low-battery warning
The computer automatically alerts you when the battery power drops to a critically low
level. The computer first emits a high-pitched beep or displays a warning message. Then,
if you do not restore power within a short time, the computer goes into Hibernate mode.
Once the computer enters Hibernate mode in this way, you won’t be able to turn it on
again until you restore power by doing one of the following:
•
Replace the battery with a charged one. See “Step 1: Install the battery” on page 17.
•
Plug in the AC adapter. See “Step 2: Connect AC power” on page 19.
Note
If you plug in the AC adapter, you can continue to work while your battery recharges.
To recharge the battery
CAUTION
The AC adapter is normally warm whenever plugged into an AC outlet. The
computer is normally warm while recharging. Don’t recharge the computer in a
briefcase or other confined space, or its battery could overheat.
•
Plug the AC adapter into the computer.
To get the longest operating time, wait until the battery’s charge is below 50% before
recharging, and then charge it fully (100%). Charging can take up to approximately
3 hours. If you continue working while the battery charges, the charging time may
increase to 4 hours.
A fully charged battery can operate the computer for up to 3 hours, depending on your
computer’s model, power management settings, and level of use.