Huawei WRTB-WFE9L Quick Start Manual page 9

Charging your computer
Your computer has a built-in rechargeable battery, and you can charge it using the adapter and
USB-C charging cable that came with it. The indicator blinks white during charging.
You can use the power port on the left for charging and transferring data. The USB-C port on
the right is a DisplayPort and can also be used for transferring data.
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