20V Power Output from Portable Battery

[nupe494]

I've got a power bank that can supply 12V@2.5A and 20V@5A. Since the SP2 draws up to 3.6A, I'm concerned that it could overwhelm or damage the power bank. So I'm curious as to whether the SP2 can handle the 20V supply or will that damage it considering its power supply is rated at 12V output?