This a battery pack that has two 3V coin cells in it. The circuit gets enough power from this 6V supply. Anything over 5V will work. This is a much smaller and lighter than the bulky 9V battery i was using earlier. I made this battery pack by following the How to make a Battery Pack instructable online.
It works for a temporary fix but I think I'll solder wires on for the final use cause the wires keep shifting under the tape.