TIme Keeps on Ticking

So my little green alarm clock that likes to alaram me at 6am started to stop ticking when I roped around the clock to turn it off. Reseting the clock would get it back in motion. Then, yesterday, I find that the clock would noot respond. I spin, I hit, then I think of the little Energizer Bunny- The battery! Replacing the Rayovac with another off-brand got the clock back on beat with a snappy rhythm.