We can kindly confirm that you are not able to charge your Quatro Wireless Power Bank with your computer. It is required to connect the power bank to a power adapter in order for it to charge. The power bank is capable of charging at a rate of 18w, when connected to an adapter that can support this wattage, or more.
We hope this information has been able to provide a bit of clarification and guidance.
Please feel free to reach back out to us if you were to have any further inquiries or immediate concerns.