Will driving my car fully recharge my battery?
Some factors affecting a car charging system's ability to charge are;
- How much current from the alternator is diverted to the battery to charge it
- How long the current is available, and at what temperature the charging activity is taking place.
Generally, idling the engine or on short “stop-and-go trips” during cold or hot weather or at night will not recharge a battery. A long daytime trip in warm weather should recharge a battery.