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Car is not charging has new battery new alternator ad volt regulator?
Wiki User
∙ 14y ago
Possibly the voltage regulator has a poor ground or poor +12v?
Wiki User
∙ 14y ago
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Does a 1982 Mercury Black Max have an alternator?
no it has a stator charging system that uses a rectifier & volt regulator.
What is the meaning of astra battery warning light?
That is the charging system warning light. If it stays on or flickers it means the alternator is not outputting enough voltage to keep the battery charged. With a digital volt meter you should read from 13.5 to 15.5 volts at the battery with the engine running. If not the alternator or the voltage regulator is defective. The voltage regulator is more than likely built into the alternator.
How can you constant the volt of alternator?
The voltage regulator has the job of making the voltage 'constant'. In most modern vehicles the regulator is located in the alternator, in older models the regulator is located separate. If your voltage is jumping around a lot then you either have a problem with the battery (batteries stabilize the voltage also)or the charging system (and probably the voltage regulator)
The Volt light is on in 1999 Monte Carlo and it will not start?
Dead or weak battery? Alternator not charging battery properly?
What is the light on the astra city dash board that looks like a battery but has a star symbol inside the battery shape?
That is the charging system warning light. If it stays on or flickers it means the alternator is not outputting enough voltage to keep the battery charged. With a digital volt meter you should read from 13.5 to 15.5 volts at the battery with the engine running. If not the alternator or the voltage regulator is defective. The voltage regulator is more than likely built into the alternator.
Why is the car battery charging at 14 volts running and 13.5 not running?
your alternator charges the battery while the car is running. The alternator actually puts out a higher voltage than 14 volts while it is running, but it is reduced by a voltage regulator (most of which are already built into the alternator housing), to prevent damage and premature death of the vehicles battery. While your car is not running, the alternator is not charging the battery, and the 13.5 volt reading you get is just the measurement of the voltage the battery is holding at that given point.
Does low alternator cause battery damage?
An alternator that is charging insufficiently won't necessarily damage a battery unless it is driven that way for a very long time. More often a failed voltage regulator ( internal in most modern alternators ) or a failed rectifier in the alternator will damage a battery. To test your alternator you will need a volt meter. Start the vehicle and test the voltage across the battery terminals. Put the positive lead of your meter to the positive terminal on the battery. The rate of charge ( reading on your volt meter ) should be 13 to 14 volts; if it is lower your alternator is insufficiently charging. Have a friend step on the gas and hold the motor at about 2000 rpms. Repeat the test on the battery; if the voltage reads above 14 volts your voltage regulator has failed. Testing rectification from your alternator requires an osciliscope. However, normally if the rectification diodes fail your alternator quits charging and you will have determined this with your first test.
Why would the battery in a VW Jetta not be getting any charge if it has been replaced but you still have the same problem?
You need to check if the ALTERNATOR is giving the correct output so as to charge the battery. By having a volt meter across the batery terminals one can then rev the engine and the voltage accross the battery should be about 13.8 volt indicating that the Alternator is charging the battery. If this 12 volt bateery voltage does not increase, this indicates a charging problem (mostly with the alternator either the brushes or one of the diodes in the alternator).
How do you test an alternator with a volt tester?
Check the voltage with a volt meter at the battery with the engine running at idle. You should read 13.5 to 15.5 volts. Any less and the alternator is not charging properly.
Can an alternator charge a battery with only a 12.5 volt?
13.1v is about the lowest possible charging voltage.. 14.0 to 14.8 is better.
Why is your 93 saburban shaking and the battery keeps dying?
Sounds like the alternator is not charging the battery up / WORKING check charging system. Charge battery to 12.8 volts and then start engine and hook volt meter to battery and it should read 13.8 to 14.3 volts. If it don't then replace alternator. Also need to make sure the alternator belt is tight.
Why is the in dash volt meter in my 1991 Chevy S10 only reading about 10 volts with a new battery?
The voltage gauge on the dash refers to the charging system voltage. What this most likely means to you is that your alternator is not charging properly. If the battery is new and all battery and alternator connections are good and corrosion free you can be relatively sure the alternator has failed.
