So yeah, it was free and unopened, brand new. I have never had one of these but I've used them, if that makes sense to anyone... Anyway, having never owned one I've never set one up. I connected the battery terminals and plugged it in, but it won't stop beeping. Is this normal or did I fubar something? I know my Rocky Mountains aren't the bluest in the fridge and stuff, but I don't think I screwed anything up here.