I find it very interesting that they call out, specifically, the USB-PD voltages and currents. While they don’t specify that it is explicitly USB-PD, it would be odd for them to call out those specs and it not be USB-PD compliant. Additionally, it would be odd to create a power bank for charging laptops when no non-Snapdragon laptops support QC. If the Razer Power Bank did not support USB-PD, it could, at best, provide 15 Watts, since the max output for USB-C without PD is 5V/3A. If it implemented USB Battery Charging 1.2, it could do 25 Watts, but that spec is still for just 5V/5A. Calling out the other voltages clearly puts it in the realm of USB-PD.
Additionally, the Razer Blade Stealth (specifically called out to work with this power bank), takes a 15V input @ 3A and specified by the USB-C charger provided with the laptop. It would be unlikely that Razer would provide a USB-C power adapter that didn’t support USB-PD, nor could it support Qualcomm QC, but instead implemented their own USB power delivery protocol.
Further adding to this, Qualcomm Quick Charge 3 only supports 18W, with 4 pushing that up to 27W, well below the 45W rated on the charger.
Qualcomm rarely calls out Voltage/Current in their materials because its hard for marketing. Just say its QC3.0 compatible and the public knows it charges fast.
- The voltages match the USB-PD spec exactly. It would be odd to not support USB-PD at this point
- QC is only supported on select Snapdragon phones, not Intel Processors, making charging laptops hard without USB-PD
- The Razer Power Bank can charge the Razer Blade Stealth which takes 45W in, QC is limited to 18W for QC3.0
This being said, it is possible this power bank doesn’t support USB-PD, I find it unlikely.