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L.R.A

PowerBank has a project power supply - minimum current?

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So far I am pleasantly surprised as it is still going and already charged it (well it was not all they way discharged when it came).
I would post a video but it doesn't seem to support it.

How did you open yours? I want to look inside mine but not sure on how to open the case.
 

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It is not the same model as the ones in your original link.  It is in an aluminum tube and the top unscrews.  The little PCB inside has components on both sides - nicely soldered SMD parts on one side and hand soldered SMD on the other.  The hand soldered side is really bad.

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Why are you adverse from using a pulsed load resistor? Depending on the power bank, the pulse only needs to be once every 15 seconds. The average load will be in the <1 mA range.

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