Hi Pascal,Thank you for your support. Let's forget about the Type A power bank above, it's basically a random brand power bank in the market while Type B power bank is company's product. In short, my goal is to charge the company's power bank with di...

Hi Pascal,Thank you for your support, I can now get the external PSU to supply current. However, I can charge type A pd power bank but not type B pd power bank. Type A power bank is a commercial power bank as you can see in the figure below, I swap t...

Hi Pascal,Thank you for your support but still I couldn't charge the power bank with the quick fix given. I'll show you my setup, I'm not sure what else is missing out for the external PSU to supply the current. Please advise, thank you very much.Reg...