Sony VAIO VGN-NS - Manual (Page 26)

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Getting Started
Using the Battery Charge Functions
You can select the battery charging method for your battery pack with the Battery Charge Functions. To make the life of
battery longer, enable the battery care function.
To enable the battery care function
1 Click Start, All Programs, and VAIO Control Center.
2 Click Power Management and then Battery Charge Functions.
3 Click Advanced.
4 Click to select the Enable Battery Care Function check box in the right pane.
5 Select the desired maximum charge level.
6 Click OK.
To check the battery charge capacity
Follow steps 1 to 4 in To enable the battery care function above and check detailed information. If the battery charge
capacity is low, replace the battery pack with a new genuine Sony battery pack.