3 ms·
That will limit the amount of power you can draw to 500ma. The data lines are needed to negotiate power supply above that e.g. quickcharge standard. A proper u
by waste_monk 7y ago
That will limit the amount of power you can draw to 500ma. The data lines are needed to negotiate power supply above that e.g. quickcharge standard.
A proper usb condom has some smarts which acts as a middleman, that only passes traffic relating to power negotiation.
- Arnt 7y agoThe "manual" for my portapow cable claimed to not even pass on that, but instead negotiate with the upstream and downstream, speaking several protocols.
- honestoHeminway 7y agoYou can make a smart cable that can only negotiate power- and has no line going back to the phone. Problem then- cable is typed to phone again.
- theodric 7y agoBack in the days of the iPad 3, there were active adapters that intermediated, lying to both charger and device and permitting the iPad to charge at full current rather than 500mA, and completely blocking access to the data lines as a side effect. I still have a couple, and use them to great effect to charge my Android device more quickly on the thin clients at work as well as protect myself from juicejacking.