How Long Does A Car Battery Last After Being Charged. Replacing a conventional 12-volt car battery every 3-5 years is typical. You would have to allow your car to idle for possibly several hours to completely charge your battery.
Older batteries will go flat much more quickly. This range depends on how many times it has been required to start the car and the health of the alternator. How long can a car sit before a car battery dies.
How long your car battery lasts without being charged will depend on how old the battery is and its charge levels.
Replacing a conventional 12-volt car battery every 3-5 years is typical. It depends on the reason for the jump start. Older batteries will go flat much more quickly. However when removed itll get an extra 4 weeks to stay charged enough to start a car.
