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Will charging a car battery without disconnecting it from the car damage the alternator?
Wiki User
∙ 10y ago
No
Wiki User
∙ 10y ago
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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 the alternator run the battery low?
If the alternator is not charging the battery, then it will eventually go dead If the voltage regulator (in the alternator) is defective it will eventually kill the battery Check the alternator with a voltmeter A fully charged battery (without engine running) should read approx. 12.8 volts With engine running should read 13.8-14.2 volts
My '91Mazda 323 dies while driving It starts fine with a boost but dies soon after Help?
Probably need an alternator. Check your battery voltage with a multimeter, without the car running it should be around 12.5 volts with engine off. Start the car & check the battery voltage and if the alternator is charging properly it should be 13.5 or better at the battery. If not check the power terminal at the alternator itself and if only battery voltage (12 or so volts, same as battery) is there then the alternator is not charging.
Im on your third alternator battery stays strong but something continues to kill the alternator ive taken the fuse out of the radio have a new starter and alt belt so?
Kills alternator? don't you mean kills battery? Installing a new alternator without first charging the battery well (2amp for 8hrs) will quite likely burn up a new alternator as well as being hard on the battery.
What will happen if you replace an alternator without disconnecting the battery cables?
If you are careful and do not let the positive cable to the alternator come in contact with the motor or frame, nothing will happen. It is just a lot easier and safer to disconnect the positive cable from the battery. It saves possibly shorting out the cable and possible ruining the battery.
Why does the alternator light stay on?
Alternator not charging battery sufficiently? Check with a voltmeter: A fully charged battery should read approx. 12.8 volts without engine running. With engine running should read approx. 13.8-14.2 volts
How do I test the alternator on a 1999 Pontiac Sunfire?
Connect a voltmeter across the battery terminals without engine running reading should be around 12.8 With engine running reading should be 13.8-14.2 if you are getting these numbers alternator is charging battery
Does running the car engine recharge a drained battery?
No, you must have a charged battery for the alternator to work.Here's an explanation of how the charging system works:http://www.ricksfreeautorepairadvice.com/repair-topics/alternator-generator/testing-an-alternator-without-blowing-it-sky-high
How do you tell if it's the battery or alternator going bad?
A clear sign is if your vehicle wont start without a boost, but fires up fine when boosted. Also dimming lights when vehicle is shut off or running, all signs you alternator is not charging your battery.
Can you reset a 2001 Oldsmobile Intrigue computer without disconnecting the battery?
Yes, with an OBD II reader. Disconnecting the battery won't reset it.
Why is Alternator light is flashing on 2002 dodge stratus?
alternator light is flashing by telling you that the alternator isn't working proper. the alternator is the one that keep charging the battery. it help keep your car moving longer. if you drive without alternator and it wouldn't keep the engine running for 5 min.
Your volts light came on in your 1995 Chevrolet Lumina What is wrong?
You need to check your battery and alternator, to start with. If you're lucky it'll be something simple like those two. Sometimes you can get local auto parts stores to check them it for free. Typically that means that the alternator isn't charging. Many auto parts retailers will test the charging system at no cost. Their hope is that you'll buy the replacement parts from them. An automobile will run for a while after the alternator stops charging, but when an alternator is not replacing the electrical current the battery will eventually discharge and without recharging the battery SOMEHOW, with either a functioning alternator or an outside charger, the engine will eventually fail to start.
