VAIO User Guide VPCEH2/VPCEJ2/VPCEK2/VPCEL2 Series

# Battery

- 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 can’t 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?
- Why doesn’t my VAIO computer enter Hibernate mode when the battery pack is running out of power?