You should wait at least 16 seconds after turning on the computer
before trying to monitor the remaining operating time. This is because
the computer needs this time to check the battery's remaining capacity
and then calculate the remaining operating time, based on this
together with the current power consumption.
Please be aware that the actual remaining operating time may differ
slightly from the calculated time.
With repeated discharges and recharges, the battery's capacity will
gradually decrease. In view of this it will be noted that an often used,
older battery will not operate for as long as a new battery even when
both are fully charged.
Maximizing battery operating time
A battery's usefulness depends on how long it can supply power on a
single charge, while how long the charge lasts in a battery depends on:
Processor speed
Screen brightness
HDD/SSD power off period
How often and for how long you use the HDD/SSD and external disk
drives, for example, optical disc.
How much charge the battery contained to begin with.
How you use optional devices, such as a USB device, to which the
battery supplies power.
Where you store your programs and data.
Whether you close the display panel when you are not using the
keyboard - closing the display saves power.
The environmental temperature - operating time decreases at low
temperatures.
System Sleep Mode
System Hibernation Mode
Display power off period
Whether you enable Sleep Mode, which can conserve battery power if
you are frequently turning the computer off and on.
Whether you enable Sleep and Charge function.
Batteries exhausted time
Refer to User Information Guide about Batteries exhausted time
Extending battery life
To maximize the life of your battery packs:
User's Manual
4-15
