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Battery Power
Important Battery Tips
How to use the battery with minimal deterioration
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.
Charge the battery in a temperature range of 10ºC to 30ºC {50ºF to 86ºF}
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
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