How Long Should I Drive To Recharge My Car Battery. The amp used to charge your battery will depend on the type of your battery and any damage it has suffered. A regular car battery charger gives out from 4 to 15 amperes.
Depending on the age of your battery the capacity and construction of the charger and the charging technique used it may take a few hours to reach a complete charge. Still you can come up with a pretty good estimate. How long can a car battery sit unused.
An alternator is designed to MAINTAIN your car battery not recharge it from a deeply discharged state.
The life span of your battery when left sitting for too long depends on the model of your car and how potent the battery is. Most car batteries which are in good condition will last at least two weeks without needing you to start the car and drive to recharge it according to the AA. The answer is YES yes the car battery does charge while the engine is idling. In general car batteries should be able to keep their charge in less than 2 months.
