2010 Santa Fe V6...about a week ago the starter started acting up. When you try to start the car, you would hear 3 clicks before the engine would start normally. The clicking is random and does not happen every time. The dealer could not find anything wrong other than the battery was reading 440CCA vs the 600CCA it was rated. Starter clicked first thing today on the way to local mechanic to get brakes replaced. They tested battery and it tested good. Any ideas to what could be the problem?