Panasonic U500 Maximizing battery operating time, Retaining data with power off, 6cell, 12cell

Power and Power-Up Modes

Maximizing battery operating time

A battery’s usefulness depends on how long it can supply power on a single charge. How long the charge lasts in a battery depends on:

nCPU processing speed (Depends on the model you purchased)

nScreen brightness

nCooling method (Depends on the model you purchased)

nSystem Sleep Mode

nSystem Hibernation

nMonitor power off

nHow often and how long you use the hard disk, optical disc.

nHow much charge the battery contained to begin with.

nHow you use optional devices, such as a PC Card, to which the battery supplies power.

nEnabling Sleep Mode conserves battery power if you are frequently turning the computer off and on.

nWhere you store your programs and data.

nClosing the display when you are not using the keyboard saves power.

nOperating time decreases at low temperatures.

nThe condition of the battery terminals. Make sure the battery terminals stay clean by wiping them with a clean dry cloth before installing the battery pack.

Retaining data with power off

When you turn off your computer with fully charged batteries, the batteries retain data for the following approximate time periods.

Battery pack	Approximately 2 days
(6cell, 12cell)	(Sleep mode, 6cell)
	Approximately 4 days
	(Sleep mode, 12cell)
	Approximately 5 days
	(Shutdown mode, 6cell)
	Approximately 10 days
	(Shutdown mode, 12cell)
RTC battery	Approximately 3 months

6-8 User’s Manual