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Yes and no. Yes: The alternator will charge the battery any time the engine is running (even at idle) if the battery's voltage is below the threshold (usually around 12 volts) so that the voltage regulator triggers the alternator to generate power (around 14 volts) until the battery is charged up. No: If there is not enough consumption of power, the battery may be charged enough and the voltage regulator will not trigger power generation.
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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.
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
Your 89 Jeep Cherokee is dead you charge the battery but after a while car will start idling rough then shut off or if I shut the car off it will completely die again what is wrong with your jeep?
Bad Alternator and have your battery checked for bad cells
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.
Will a car alternator charge a deep cycle battery?
Yes
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
Can an alternator charge a car battery?
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.
Why does your car battery light flicker?
poor charge or intermitant charge from the alternator, also check condition of the alternator belt
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.
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
