ESP32 lora wifi V2 .Options to power device

Im looking to mount the espwifi v2 onto anotherboard by its headers.
whats the best way to power this board not via the usb header.
i have 3.3v and 5v avalable on the board below.
idealy i can power from 5v to maintain the internal battery on the board.
Thanks
D

I think 5V is the best way.