“When I connected my Dell XPS 13's power adapter through the JD383, I got a warning (symbol) indicating slow charging. Please let me me why this could happen. Does it not support power passthrough for this laptop. Rated power on the Dell adapter is 45W”
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The USB-C power-in provides pass-through charge to a computer that supports PD. With a power-brick of 45W, that may state the "indicating slow charging" because the power-brick is also providing power to the USB-A ports on the Multi Adapter. We recommend 65W or higher for pass-through charge.
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