Rotten Egg Smell

Can I Borrow A Gas Mask?
Can I Borrow A Gas Mask?
Can I Borrow A Gas Mask?
This little back up battery is what is causing our studio to smell like rotten eggs! This morning when I walked through the front doors of our office I was hit with the smell. I thought ... Ugh ... it is really going to stink in our studio if it smells this bad all the way out front...