So, I've been looking online to see if I could find anything about my doorbell and I actually found what I think is the instruction manual. It's nice to have that, and it has a little Troubleshooting section. The battery that I got last night was for the pushbutton that's attached outside next to my door, but I'll try replacing all the batteries. Then, I'll from there. I'm actually going to go shopping with my sister tonight, so I can get them tonight.