4 ms·
> While a quality charger shouldn't try to push 60W or even 100W down an unsuitable cable, I've seen it happen. How is this even possible?
by JustSomeNobody 4y ago
> While a quality charger shouldn't try to push 60W or even 100W down an unsuitable cable, I've seen it happen.
How is this even possible?
- LorenPechtel 4y agoCheap cables may not implement the detection properly. Device says I want 100W, charger says I can give 100W, dumb cable just sits there letting them talk and doesn't say no.
- error503 4y agoWhat you describe would be a broken charger, not a broken cable. The charger is supposed to interrogate the cable and only offer 5A if a) the cable responds and b) responds with a 5A capability.
- LorenPechtel 4y agoThat's what's *supposed to* happen, but some of the bad cables omit that and the charger is actually talking to the device, not the cable.
- error503 4y agoHuh? That's not how the PD protocol works, it's a multidrop bus, and the device won't respond to requests addressed to the cable.