Quote Originally Posted by CreativeForce View Post
Interesting. So you would just put the rechargeable battery in place of the holder and secure with some double foam tape?
One of these batteries, gets placed in this holder, and after some slight modification (taking the sharp edge off the corners) to allow it to fit, it goes in here.

Of course, you would need to wire the holder to your soundcard, but foam is not needed for the battery in this setup (using the 18650 and the holder). If you would like to secure the soundcard, double foam tape can be used, if you wish.

For some reason, I can’t attach a pic using my phone. I’ll edit and post the pic from my pc.