Here's a question for all those knowledgeable in bike maintenance/repair (which obviously does not include me)

I have a year old battery that was trickle charged for a day, and I can't get the damn bike to so much as turn over. I just get a fast click of the igniter. So what gives ?
Is the battery just kaput ? Something else amiss ? Do I have to have this thing towed into the shop ? (I'd hate to have to do that !)

Here's the reward : A case of beer (you get to pick what you want) for the first right answer that solves the problem. (taking it into the shop doesn't count as right answer)