Quote from: gabriielangelI have heard that when you use a usb powerbank with a usb voltage converter, the voltage is not as steady as with a powerbank with a straight 7.2-8v output, so it could damage the camera in the long run, because there is no regulator inside the camera (It expects a battery).
This is a matter of quality, same as with the battery. Good voltage converters contain a regulator and can provide *more* stable output than an original battery.