# User Guide

# Personal Computer VAIO Fit 14E/15ESVF1421/SVF1521

## Battery

- Charge Indicator Status List
  The charge indicator light turns on or blinks differently according to conditions.
- Charging the Battery Pack
  The battery pack can be charged even while you are using your VAIO computer when the computer is connected to a power source. The charging time may vary depending on operating conditions.
- Extending the Battery Life
  When your VAIO computer is running on battery power, you can extend the battery life using the following methods.
- About Sleep Mode
  Sleep mode enables you to take a break and retain the computer’s state, including data you are working on.
- Changing the Rapid Wake (Sleep Mode) Settings
  You can change the Rapid Wake settings in VAIO Control Center.
- Checking the Battery Charge Capacity
  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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### You might be looking for the following topics:

- Notes on Using the Battery Pack
- Installing the Battery Pack
- Removing the Battery Pack
- What should I do if a message appears indicating that the battery pack is incompatible or has been incorrectly installed, after which my VAIO computer enters Hibernate mode?
- Why cannot I fully charge my battery pack?
- Why is my VAIO computer running slowly and the CPU clock frequency low while the computer is running on battery power?

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