He bought a Quick Charge power bank and then hacked a Digispark to negotiate with the power bank to provide 12V output to Quick ... at version 4 and supports USB-C and USB-PD hardware such as ...

USB A 18W/USB A 5V/3A, and DC 12V 5A. "The portable power bank is awesome," one reviewer shares. "It's small but powerful. Much better than other power banks. Comes with multiple ports so you can ...