How do you remove the battery?

I know the battery is under the back seat and I was able to locate and unbolt it. How do you pry the battery loose? It is in a container with a hump up front that you can't slide the battery over. Is there some trick to getting this battery out that I'm not aware of?

Any advice or tips would be appreciated.

what kind of car are you talking about

Buick Riviera 95

Alll you have to do is take off the little rubber harness and that one bolt and just tilt and wiggle the thing loose. I took mine out nearly a year ago and replaced it with an Optima Yellow top. The stock battery is gargantuan and weighs a pretty good amount. Just keep trying, no tricks.

Thanks. I'll give it a shot.