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That is the purpose of an alternator. The keep the battery charged and to run all the electrics on the vehicle. However it is never a good idea to allow the alternator to charge a dead battery. This will put a strain on the alternator and may damage it.

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โˆ™ 2010-11-25 18:17:39
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Q: Can an alternator charge a car battery?
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Related questions

What charge the car battery?

The alternator charges the car battery.

Can you eliminate alternator from car?

you need the alternator to charge the battery with no alternator when the battery drops to about 10 volts car will not run at all.

Are there any devices that can charge up a car battery besides an alternator?

older cars had a generator ,not an alternator, but you can always use a battery charger to charge a battery

How long do you run your car after a a car jump?

I assume you mean how long to charge the battery. You should never let the alternator charge a dead battery if possible. The alternator is designed to keep the battery charged but not to charge a dead battery. You put a strain on the alternator and it can cause a diode to burn out. Drive home and then put a battery charger on the battery to fully charge it.

Will your car shut off if the alternator goes out?

No, the alternator is used to charge the battery apperently.

Charge a car without a battery?

You can start a car without a battery if you hook up a jump pack or use jumper camples but it could fry your alternator. It is pointless to charge a car without a battery. When you charge the car you are charging the battery.

Will a car alternator charge a deep cycle battery?


If the alternator is bad the car isn't going to start?

It can depending on how much of charge that battery. How long it will run without the alternator also depends on the battery charge.

Will car start if alternator is dead?

Yes, the battery starts the engine, and as long as the battery is fully charged the engine will start. The battery will loose it's charge if the alternator is defective and not replenishing the charge of the battery but the alternator has nothing to do with starting the engine.

2000 Dodge Stratus loses its battery charge you charge the battery car runs for 3 miles and dies out again Battery needs another charge What is the problem?

your alternator is not charging your battery..u need to get a new alternator

Why does your car battery light flicker?

poor charge or intermitant charge from the alternator, also check condition of the alternator belt

Can a car battery over charge it self in the car?

Sure, if the alternator voltage regulator is defective it can overcharge the battery.

What can make a car battery die when running?

It sounds like the alternator is bad. If the alternator is bad the battery will not hold charge when running

Can you charge an ATV battery with a car battery?

I am assuming you mean with the auto engine running. Yes, that is possible but you are putting a strain on the alternator of the car. An alternator is not designed to charge a dead battery. It is designed to keep a charged battery fully charged. as long as the ATV battery is the same voltage as the car battery, usually 12 volts, you can charge it, or jump start the atv and let it charge the battery itself.

Can you charge a dead battery by getting a second car that is running take the good battery out of the running car and put the dead battery into the running car as a means of charging it?

No, this will place a very heavy load on the alternator of the car and may result in burning out the diodes of the car charging the battery. You could easily ruin the alternator. Purchase a battery charger and charge the dead battery with that. Alternators are not made to charge dead batteries.

Will a car battery charge wile driving if the negative termanal is loose?

No, the alternator will not charge the battery with the negative terminal loose.

Why does my 1993 Lincoln town car not charge the battery?

Have the alternator tested.

Does quick charging a battery hurt the alternator?

if you boost charge a battery you should discinnect it from the car. if not you may burn out the alternator

Does driving the car also charge the battery if its dead?

Yes, once you have jump started the car (from another car's battery), driving the car will recharge the dead battery (provided the battery is OK). This is a terrible idea and may damage the alternator. Drive the car immediately home and charge the battery with a battery charger. Alternators are designed to keep a charged battery fully charged. They are not designed to charge a dead battery. This puts way too much strain on the alternator circuits.

How much time does it take a car alternator to charge a battery?

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.

Why new battery and alternator won't hold a charge when car is running?

The alternator does not hold a charge. It charges the battery. If it will not charge the battery then either the alternator is defective, battery is defective, or the connections are corroded or loose. You should read 13.5 to 15.5 volts at the battery with the engine idling. Check it with a DC volt meter. If you get less the alternator is defective. If you get much more the voltage regulator is defective.

Battery won't charge?

Either the battery is bad and won't accept a charge or the alternator is not putting a charge into the battery. Have the battery tested. You can hook up an inexpensive volt meter to the battery while the car is running. You should see from 13.5 to 14.5 volts if the alternator is working properly. If it is less than 13.5 volts then the alternator is not charging.

Can a car's alternator charge the battery while the car is not running?

No. The alternator has to be turning to produce the charging voltage. It only turns when the engine is running.

Will a car start if the alternator is going out?

It will start if there is enough charge in the battery to turn the engine over. However if the alternator is weak then the battery will not be charged fully.

Does an alternator charge a battery while the car is not running?

No , just when the engine is running