Yeah, probably takes a 9v battery. I had one a loooong time ago ... sold it and bought a Combo-C-lector, which I still have. To put a battery in it you have to unscrew the back off of it. Don't remember about the Color-C-lector, but if there's no obvious panel/door on the back .... then it possibly works the same way as the Combo-C-lector.