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What else can I help you with?
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
Does the alternator charge your battery when the car is idling?
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.
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.
What charges the car's battery?
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.
Can a battery be charged by an alternator while running an electric motor?
Yes
What causes the battery to drain when running?
Defective alternator or voltage regulator. Also possibly the battery is defective with a dead cell.
Your headlights are dimming is it the alternator?
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.
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.
On a Ford Taurus if there is a bad alternator or not will the car DIE WHEN I REMOVE THE BATTERY CABLE?
You will destroy the voltage regulator if you unplug the battery while it is running, then you will have to replace the alternator anyways.
Your alternator and battery both tested good but the battery is not being charged?
Most likely cable running from stud on top of alternator to battery terminal is corroded or broken.
Does leaving the car on but not driving it anywhere drain the battery?
If the engine is running, then no. The alternator constantly keeps the battery charged.
Why is your car not starting and the battery keeps dying?
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.
