Many Lakes households run one car for the commute and another for short hops: the supermarket, The Lakes Club, a school in Emirates Living. The short-hop car is the one that fails. Each start takes a large bite of charge, and ten minutes of driving with the AC on does not put it back.
Signs to watch for are a starter that turns more slowly than last month, headlights that dim when the engine cranks, and start-stop that has quietly stopped working. Any of these is worth a battery test at home. If the readings are healthy, we tell you and nothing gets replaced.