I have a set of USB cables (data and charge) and I noticed that, for a given charger, the charge time differs by cable.
What would be a good way to measure the charging fitness of a USB cable? Possibly with equipment which is not NASA-grade?
I know that I could measure the charge current for a set of charger and cable but I would prefer to assess the cable alone.
Would this measure be dependent on the charger characteristics? In other words, are some cables more or less efficient depending on the charger (not taking into account the current the charger can sustain)?