Thanks to all who responded

I have a Genius 5, but haven't opened it yet. I think it's battery charger comes with clamps

Ok, so the battery I got has two sponge Bob looking metal pieces sticking out the top. Your saying I have to attach bolts to those? Also, should I charge it before I use it, or do they usually come charged?

I couldn't tell apart a positive and negative terminal. I know very little about batteries. I need a somewhat reliable backup in the event of a power outage , but also something safe to use indoors. I am looking at getting an AGM U1 battery. I wanted to know if it was safe to not only store the batt...