I am looking for the best long term way to power a small basic animatronic project - it is just one servo, connected to an Uno, moving pretty constantly when the piece is switched on.
This is the servo I am using:
And this servo is the only thing the arduino is running.
I would ideally like to use a battery pack through the USB, such as this:
But from what I have read its not always the best option or can be unreliable? I have tested it using one like this and it seems to run fine but I don't know if it will stay like that in the long term?
Would a mains power connection be better? If so, which type? ( I have seen there are 9v 2A and 12v 2A options etc)
I am pretty new to electronics and don't know how much power something like this servo draws so I am struggling to understand the guidance about which power supply is best online.
Thank you in advance for any advice!