QC3.0 is the new standard for charger used by many companies, and therefore we get lots of compatible power banks and wall chargers. They deliver up to 12 volts and later up to 20 volts. And the voltage can be adjusted. Sounds like ideal for a Lab or a Mobile power supply. But unfortunately, the standard is proprietary. So let's hack it.
The old USB chargers were able to deliver 5 volts and around 2-amperes max. The new QC chargers provide up to 12 volts and 2A peak. And you can change the voltage on the fly. Sounds interesting and dangerous! I do not want to charge my trusted old iPhone with 12 volts. I assume this would not be accepted as a warranty case by Apple…

Links:
Vince's blog: http://bit.ly/2Pf9DbM
QC 3.0 charger: http://bit.ly/2KKFdh3
QC 3.0 Power Bank: http://bit.ly/2JSwysr
QC tester: http://s.click.aliexpress.com/e/cqPyt9ZW

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