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Fully charge the battery Check with a voltmeter (should read approx. 12.8 volts without engine running) With engine running and good alternator reading should be 13.8-14.2 if the battery is dead the car wont start. replace the battery (preferably with a new one) run the car and if it dies or wont crank again its the alternator (or possibly the alternator belt is slipping)
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∙ 16y ago
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What happens if the alternator goes in a car?
THE BATTERY WILL GO DEAD
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.
What problems does a bad alternator cause?
Dead battery, car will not start
Your car wont start just makes a clicking sound?
That could be the alternator or the battery. Try jump starting your car with another car's battery. If it still does not start, it is probably the alternator. If it starts, your battery is dead.
If you constantly run your car with a dead battery will this hurt your alternator?
Yes, alternators are designed to maintain the battery, or recharge a battery that has been slightly discharged from starting the car. When the alternator is used to recharge a dead battery, it causes the alternator work harder and longer than it is designed for, causing it to overheat, thus causing damage to the alternator. A battery charger should be used instead. They are designed for charging dead batteries. After the battery is charged, let the alternator maintain the charge.
Will battery recharge after bad alernator is replaced?
An alternator is designed to keep a fully charged battery at peak level. It is not designed to charge a dead battery. Installing a new alternator on a car with a dead battery can in some cases ruin the new alternator. Fully charge the dead battery before starting the engine.
Would a car stall if the battery was dead?
The problem is probably the alternator. If the alternator fails to keep the battery charged the battery will keep the car running until it can no longer supply voltage to essential systems and the car will stall.
If the keys in a 2000 Jaguar XK8 are left in the on position all night is the battery dead or is it the alternator that is the problem?
I would expect that the battery is dead; however, instead of jump starting the car, it is far easier on your car's charging system to place a battery charger on it for about 6 hours then start the car. Otherwise, the alternator tries to charge the dead battery at a wide open rate and it can damage your alternator. Mark
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.
Can you start and move a car without battery?
The battery is used when the car is running to stabilize the voltage and store energy from the alternator. It is not recommended to run the car with no battery, as this can damage the alternator and the car's electrical system.A dead battery (if you have one) can usually suffice to run the car for a short time, however it may also damage 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.
Can you jump start a car with a bad alternator?
you can but it wont stay running if the battery is dead
