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It varies depending on how much other electronics you are using on the vehicle at the time. Could take hours. I do not recommend you charge any dead battery with the alternator if you can avoid it. it puts too much of a strain on the alternator and may damage it. Charge a dead battery with a battery charger.
What else can I help you with?
Why battery do not charge if alternator and fuse are good?
The battery may be defective and not able to take a charge.
99 astro van and it not charging?
If you have already checked the connections on the battery I would suggest testing the alternator and the battery. If the battery will not take a charge or the alternator will not give a charge you could have similar problems.
Why would a good alternator not charge a battery?
If the alternator is good and the battery does not charge, then the battery may be bad. There could be problem with the electronics. You will need to take it to a place where they sell batteries. They have equipment to check out the battery and the wiring.
Why won't the alternator charge?
Bad alternator? Bad voltage regulator? Bad Battery (won't take a charge)? Bad fusable link? Loose or corroded battery cables?
I have a 1995 f 150 alternator is good but the battery will not charge what do i need to do?
Charge and load test battery- it may be not able to take a charge and need to be replaced You may a have blown fuseable link preventing alternator from charging battery
Why is your battery light on and Battery meter pegged high on the instrument panel in your 2002 F150 pickup Alternator If so how do you change it out?
I had this problem. The alternator was fine, it was the battery that was bad. The alternator was "pegging" out the indicator bc it was trying to charge the battery, but it wasnt taking charge. Take the battery out and have it checked.
Battery no charge warning?
Sounds to be alternator. Take somewhere to have the charging system tested.
My Toyota won't idle after changing the battery?
battery is low charge. Take it for a long drive, to take the load off the engine from the alternator charging it.
Is it the battery or the alternator that is bad on a zx7r that shows 11.77 volts while idling at 3000?
Unless the battery is shorted or sulfated and will not take or hold a charge, most likely the alternator is bad
How long to run your car battery after jump charging?
It is best to drive home and put a battery charger on the battery and let it fully charge. Letting it charge with the alternator puts a strain on the alternator and should be avoided if possible. But if you have no charger then you will need to let the engine run for around 30 minutes to charge the battery enough so that it will start the next morning. It will take a couple of hours of driving to fully charge the battery.
If a car's engine light went on battery dropped to 0 and now the car is dead is it the alternator or does it need a new battery?
Hey Greg==It can be both. Try charging the battery first. If it won't take a charge replace the battery then take it to Auto zzone who will check the alternator for free. GoodluckJoe
MY car will start when jumped but sometimes start and die and the battery will not keep charge could this be the altinator?
could be the alternator. could be the battery, the alternator charges the battery but does not stop the battery holding a charge.could also be a bad starter motor. take alternator off and have it tested. most places will test for free
