@quixoticgeek yes, normally they should only block D+/- and RX/TX lines. CC, VBUS and GND are required for USB PD.
@Hipska hmmm. I want to stop my phone from fast charging when using a power bank so it doesn't destroy the battery so fast...
@quixoticgeek It isn’t the ‘fast’ charging that destroys the battery, but you could try to go from USB-C to USB-A to USB-C, then you are again at plain old 5W power..
@Hipska what kills the battery then ?
@quixoticgeek Heat, keeping it at full charge, keeping it at empty charge, …
@Hipska yeah. When it charges fast then battery gets really warm which I am trying to avoid...
@Hipska excellent. I'll order a couple of data blockers to experiment with.
@quixoticgeek I believe so, I would still add the data blocker in between in case of anything smart happens in between (because of the cable or one of the connected devices)