The battery is a consumable and, as such, its performance will gradually deteriorate. This deterioration is accelerated under the following conditions.

When the battery is repeatedly charged

When the battery is used, charged or stored in a place with high temperature

To minimize deterioration of the battery and ensure a longer battery life, you must reduce the number of charges and ensure that the temperature inside

the battery does not become too high. Bear in mind the following points.

N O T E

The battery pack gradually deteriorates over time even if cared following the above points. If it deteriorates, be sure to replace with a new and

specified battery pack.

This computer reduces the full charge capacity in stages to ensure a longer life of the battery pack.

Charge the battery in a temperature range of 10°C to 30°C {50°F to 86°F}

In places where the outside air temperature is high, the temperature inside the battery will also become high. Do not charge the battery inside a vehicle

with all its windows closed and exposed to the hot sun or in other places where the temperature is high.

This computer's battery will not be charged if its temperature is outside the allowable range. (At such a time, the battery indicator blinks orange.)

We recommend charging the battery no more than once per day

Recharging the battery after every small use raises the total number of battery charges and speeds battery deterioration.

To lower the total number of battery charges, we recommend recharging the battery no more than once per day or when the remaining charge drops to

10% or less.

With this computer, in order to reduce the number of charges, the battery will not be recharged immediately after it has been fully charged unless the

remaining charge has fallen to less than 95 %.

Charging the battery while the computer is powered off is recommended

If the computer's power is on, the temperature inside the battery rises due to the effects of heat from the CPU and other components. We recommend

that you only charge the battery when the computer is powered off.

How to use the computer to maximize the battery operation time

Leave the computer off when it is not in use

Decrease the internal LCD brightness by pressing ≪Fn≫ + ≪F1≫

Pressing ≪ Fn≫ + ≪ F1≫ will lower the degree of brightness, thereby reducing the power consumption.

Before stepping away from your computer, press ≪Fn≫ + ≪F7≫ or ≪Fn≫ + ≪F10≫ to put your computer in the sleep or

hibernation mode

Pressing these key combinations will put your computer in the sleep or hibernation mode, thereby lowering the power consumption.

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