Will A Car Battery Recharge While Idling. Car batteries do get charged while the engine idles. Scott told us that the short answer is yes you can absolutely charge a car by just letting it sit and idle but youre unlikely to charge the battery very much unless youre idling for quite.
The good news is that yes your car battery will charge when idling. I think your battery is fine. Your car battery will be charged by your alternator which will provide electricity to charge the battery.
Car batteries will charge at idle as long as your alternator is functioning properly and there are no weak connection points.
The speed of charging a car battery depends on the RPM on which it is running. Again assuming that the battery can still hold a charge. The good news is that yes your car battery will charge when idling. If you have a working alternator then the battery will receive current all the time when the engine is on.
