Question 1

Is this support qualcomdm quick  3.0 for galaxy s9+ and what the difference between q.c 3 and PD Technology ?

Accepted Answer

Good question. Both USB-A and USB-C port of Zendure A6PD support Qualcomm quick 3.0 device and could provide 18W max output for them. However, Samsung cut fast charging feature on S9 and S9+ in order to avoid battery explosion accident. please see more discussion through the link (https://forums.androidcentral.com/samsung-galaxy-s9-s9-plus/881119-s9-plus-quick-charge-question.html)

Quick Charge 3.0 is a proprietary fast charging protocol developed by Qualcomm. It works over existing USB 2.0 connectors and cables and delivers a peak of 18W power to a device for charging. 
PD Technology can support voltages as high as 20V, but over Type C cables it can support charging at up to 60W (untagged Type-C cable) or 100W (tagged high power Type-C cable).
All in all, PD is a future-proof technology and widespread use in phones, laptops, and other devices, while QC 3.0 is only work for Qualcomm phones and the max output is 18W only. 
Here is more detail from Quora answer. (https://www.quora.com/How-does-Quick-Charge-3-compare-with-USB-PD)

Thank you for your interest.

Question 2

Possible to charge the unit via usb c and micro usb at the same time? If so would the device charge faster?

Accepted Answer

Good Question. 
It only can be charged via either USB-C or Micro. 
About 3.5 hours fully charged via PD USB-C Port (45W or more PD Charger required) is the fastest speed for 20100mah portable battery.

Question 3

Will this work for a HP Elitebook?

Accepted Answer

Good question.
I am afraid it doesn't work for HP Elitebook. It only works for USB type-C PD Laptop, which is using USB-c port as a recharger port and have Power Delivery function.

Question 4

Will this charge an acer switch alpha 12 through it's usb type c?

Accepted Answer

If the Acer switch alpha mode is SA5-271, then the answer is Yes, works perfectly.

A6PD 20000mAh

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