The Tragedy of the 9 Volt Cell Battery

Shouldn't merchants be required to say that a bass requires a 9V battery before you purchase it? I bought a bass awhile ago and much to my surprise, the sound quality kept getting worse and worse. I thought it was just because it was a bass plugged into a guitar amp. I was starting to wonder if I got ripped off. Had I spent all that money just so the thing could f*&% up on me? I knew just a little about bass guitars when I was buying. I certainly didn't know they needed a battery to help power the electronics. Today, I decided to open up the cover on the back to see if there was a wire loose or a dead mouse in there clogging up the works. As soon as I took the plastic piece away from the back, there, staring up at me, was a bright green battery with Asian words all over it. (Sorry, I don't know the difference between Asian languages.) The tongue test revealed that it had no power left. I would like to start a movement, I don't know if anyone's with me on this, that requires musical instrument sellers to tell you whether or not your potential purchase must have a battery to operate properly. If anyone is with me, please sign up below.