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Note: Surface Book uses battery power to release the Clipboard. If the battery is too low, the
green light won’t come on and you won’t be able to detach the keyboard from the Clipboard.
Charge your Surface Book until you have enough power to disable the friction mechanism.
The basics
Here are a few basic things to know about your Surface Book.
Power and charging
Surface Book has two batteries—one in the keyboard and one in the Clipboard. It takes two to four
hours to charge Surface Book fully from an empty state. It can take longer if you’re using your
Surface Book for power-intensive activities like gaming or video streaming while you’re charging it.
You can use the USB port on your power supply to charge other devices, like a phone, while your
Surface Book charges. Note that the USB port on the power supply is only for charging, not for
data transfer. If you want to use a USB device, plug it into the USB port on your Surface Book.
Check the battery level
You can check the battery level from the lock screen or on the desktop.
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General
Weight and Dimensions
