Will My Car Battery Charge At Idle

You can disconnect both cables or if you prefer just the ground cable attached to its negative terminal.

Will my car battery charge at idle. I had it charged and redid them. But depending on how severe the underlying problem is y ou are risking the cars engine failing to start or simply stopping in the middle of nowhere when you least expect it. Car batteries will charge at idle as long as your alternator is functioning properly and there are no weak connection points.

So while idling will recharge your battery theres a catch. It could be as simple as that or it could be that there isnt a problem since it charges fine at higher RPMs. The battery goes down to 2 bars and the engine has to kick in to charge the battery.

While it is technically possible to charge your car battery by just idling its not very efficient. Your car battery will be charged by your alternator which will provide electricity to charge the battery. Posted 7 years ago.

It can run off battery for a bit. The simplest way to solve the problem is to just disconnect the battery. 1244 battery alternator idle under load.

So to put it simply yes MOST vehicles will charge the battery albeit slowly at idle RPM. Idle charge should be about 6 amps which means it should take about an. Key off will give voltage of battery less anything that runs with key off EX security systems.

Okay when I did the tests last my battery was almost dead. Even then you will continue losing charge but at a much slower rate. If not possible then you just need to idle it more often not after months of non-use but preferably twice a month.