Notes on Using the Battery Pack
About the battery pack
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The battery pack built in your VAIO computer is not removable.
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For safety reasons, battery charging may be suspended at higher or lower temperatures.
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While your VAIO computer is connected to an AC outlet with the AC adapter, it runs on AC power.
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The battery pack is not fully charged at the time of delivery.
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While the battery pack is in use or being charged, heat builds up in the battery pack. This is normal and is not cause for concern.
About battery discharge
About battery life
About battery deterioration and replacement
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The battery pack is consumable. The capacity gradually declines through repeated cycles of recharging and discharging. As a result, the battery life becomes short even if it is fully charged and eventually the battery pack reaches the end of its life.
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If the battery pack quickly runs out of power after being fully charged or it has reached the end of its life, replace it with a new one.
Contact an authorized Sony service/support center and replace the battery pack with a new one specified by Sony.
When the battery pack is running out of power
While your VAIO computer is running on battery power, save data frequently.