CommentStreams:722614010416c7efc2275fd5358637c3

Hi, I have 2 of these UPS stacked together, and I provide 20v to both board's input port and smoke comes out near the input port of both boards.

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So how am I suppose to provide 6A for the UPS, when one input port only accepts 3A?

If I am only suppose to power it through one of the input port, will it be able to take in 6A?

The downstream device that UPS is powering will takes 6A (small computer), so I need the (2x stacked together UPS) to be able to draw 6A from the power supply. How can I do it?