Thanks for great video! it's exactly what I was looking for! And I have a question, As shown in the video, is it possible to connect the wire out of the case to the outlet?

Can you tell me exactly where to solder the positive and the negative wires inside the powerbank? Additional question: why did you use a hacked powerbank instead of the real powerbank that you have already? And if I want to use a real powerbank, can I just use a USB wire to connect it to the powerbank's USB output (after cutting the data wires, leaving only the red and black wires of course), with the red and black wires going to the tablet's? I honestly want to use a powerbank for the purpose, I just don't know how to. Thank you!

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