Sony PCG-C1X - Manual (Page 21)

Using Your C1 PictureBook Computer 9
Using Battery Power
You can use a battery pack as a source of power. The PCGA-BP11 battery
pack that comes with your computer is not fully charged at the time of
purchase. Follow the steps below to insert and charge the battery pack.
To insert the battery pack
Align the grooves on the battery with the notches on the back of the
computer, and then slide the battery towards the computer until it clicks
into place.
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You can also purchase the high-capacity PCGA-BP12 battery pack as a separate option.
See “Using Power Saving Modes” on page 30 for power management information.
Grooves