11-29-2019, 03:15 AM
(11-26-2019, 01:16 PM)Luke Wrote:(11-26-2019, 01:10 PM)zaius Wrote:(11-26-2019, 04:05 AM)danielt Wrote: 2. Connected to a modern multi-charger type A socket via a USB2.0 cable the PBP draws 10W
3. As #2 but with a USB3.0 cable the PBP draws 13W
I'm going to take a guess the difference there is happening on the charger side.
Yes, likely what it negotiates with the PBP
This is the same charger is both cases and the fusb302 debug logs are identical in both cases.
I'm tentatively reaching the conclusion this is a cable quality/length issue. The slower charging USB2.0 cable is 1.8m, I get faster charging with a 10cm USB2.0 cable and a 0.9m USB3.0 cable. Note that the charger has USB2.0 sockets so the only difference between USB2.0 and USB3.0 cabling should be nice fat conductors that are spec'ed for 900mA.
