I'm pretty new to hardware so hopefully I can find a relatively easy solution to figure out. I'm trying to make a NFC reader that's listening for cards, and once a card is scanned it will send a request to the appropriate back-end server with the information received. It needs to be portable.
Here's the problem. From what I'm seeing the battery required to run a Raspberry PI would be massive and not viable as a portable NFC reader being passed around in conference rooms etc.
Is there any solution here? Or do I have to look elsewhere? If yes, where?