Qualcomm: Quick Charge and USB-C go well together

According to Qualcomm, Quick Charge is connector-independent and there are no known reports of problems that the charging standard would cause in combination with USB-C. The manufacturer is thus responding to the claims that this combination is in violation of the USB-C specification.

According to Qualcomm, Quick Charge can be implemented in devices with various connectors, including usb type-a, micro-usb and usb type-c. “If an OEM chooses to implement Quick Charge in their device, they can adjust the voltage to be within the specification of the USB Type-C standard,” Qualcomm told Android Central.

Qualcomm is thus responding to statements by Benson Leung. This Google engineer has been working for some time to bring attention to USB-c implementations that do not meet the specification. For example, he warned last year about cheap USB-C cables, which could cause damage.

According to Leung, the usb-c specification prohibits the combination with Quick Charge 3.0. Specifically, section 4.8.2 of the specification would prohibit companies from implementing their own loading method if it uses customizing vbus. This is exactly what Qualcomm does with Quick Charge 3.0 to get to the voltage of 9V and 12V. Leung pointed out that the HTC 10 and LG G5 combine usb-c with Quick Charge 3.0 support.

The section would be included in the specification to avoid ambiguity as USB Power Delivery already supports up to 20V and a maximum of 5A. This would also be the reason why the Nexus 6P and 5X don’t support Quick Charge.