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The 9V board is configured with a minimum of 2A, and a maximum of 5A current. This means as low as an 18W power adapter (commonly shipped with smartphones) can work with this board.
NOTEIMPORTANT: By default, all of the boards will draw 5V until PD arbitration is complete, due to dead battery mode. If your use case must avoid undervolting, connect the USB-C Sink device to the source, wait briefly, and then connect your device with the XT30.
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