Q: I purchased a used car and have not had the battery checked. What happens if the battery dies while I am driving?
A: A battery commonly won’t give you trouble as the engine is running. The alternator provides the current at that time. You will notice battery troubles when you shut the car off and go to re-start. If the engine cranks slow, the battery may be getting weak. A weak battery, one that does not hold or accept a good charge from the alternator, can cause premature failure of the alternator. Most car batteries last about 5 to 6 years. Parts stores and service centers can “load” test your car’s battery.