Supercapacitor Quality Comparison - Which is Better?

I compare the quality differences between a USA made 400F Eaton Supercapacitor and 2 different China 500F supercapacitors. One is great, one is pretty good, and one is a doorstop, guess which one is which.

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Видео Supercapacitor Quality Comparison - Which is Better? канала Mad Electron Engineering