Not likely, but running the engine with a dead battery can damage some alternators. Always fully charge the battery when installing an alternator.
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
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.
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.
Yes
The battery is constantly being charged by the alternator as long as the engine is running. The alternator is driven by a fan belt or serpentine belt and provides a consistent steady flow of direct current of around 14 or 15 volts. The amount of voltage is kept steady even at varying engine revolutions by a voltage regulator.
Defective alternator or voltage regulator. Also possibly the battery is defective with a dead cell.
Check the alternator out put with a voltmeter A fully charged battery should read approx. 12.8 volts without engine running With engine running reading should be 13.8-14.2 volts XXXXXXXXXXXXXXXXXXXX ANSWER XXXXXXXXXXXXXXXXX The voltage regulator is built into the alternator. In some cases it is cheaper to replace the alternator.
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.
You will destroy the voltage regulator if you unplug the battery while it is running, then you will have to replace the alternator anyways.
Most likely cable running from stud on top of alternator to battery terminal is corroded or broken.
If the engine is running, then no. The alternator constantly keeps the battery charged.
Possibly a bad alternator. The Alternator charges the battery when the vehicle is running. If the battery is not being charged this could cause the vehicle not to start.