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How can a new battery still go flat with new alternator installed?
Wiki User
∙ 11y ago
If you install a new battery & new alternator and the battery runs down overnight then you have something pulling power from the battery. Look for any light on the vehicle that is on or a relay that is stuck.
Wiki User
∙ 11y ago
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Your 1997 Mazda 626 will not start after an alternator malfunction why?
Battery will be flat because spark plugs were running straight off your battery because the alternator was not charging your battery as you were driving. You can test this by jump starting your car with another car and after your car is running you should be able to disconnect your battery and car should still run off the alternator. If your car stops than your alternator is RS. Battery will be flat because spark plugs were running straight off your battery because the alternator was not charging your battery as you were driving. You can test this by jump starting your car with another car and after your car is running you should be able to disconnect your battery and car should still run off the alternator. If your car stops than your alternator is RS.
Would a bad alternator cause a battery to go dead?
either the alternator is dischargeing the battery or it is going flat just because its not getting re charged
How do you tell if car alternator is bad?
The battery light will be illuminated on the dashboard and later the battery will go flat as it is not getting charged Garages can check this for you if your battery is frequently getting flat.
Can you Help as im not sure why but the two different batterys ive used have both gone flat whilst driving my peugeot 206 gti?
If a new battery goes flat the most common fault would be a fualty alternator or regulator on the alternator. The alternator is belt driven by your engine and generates electricity to re-charge your battery. A brand new battery may last a few days but without re-charge from the alternator it will eventually go flat.
Your car will not start again replaced the battery two days ago what is it now?
could be the alternator or starter sounds like the alternator if the battery is gone flat get the alternator tested at auto parts or garage jump charging the battery might get you out of trouble for a bit
Battery flat in your Mercedes c180 battery in boot how do you get it opened?
Connect a slave battery to the alternator live terminal and an earth. Then the central locking should work.
Why after you have changed both the battery and alternator on your Nissan primera does the battery still keeps going flat what else could it be?
if both were replaced and installed properly you may have an open circuit.a test to find out where the open circuit is , you need to placed a multimeter on your battery and have someone pull out each fuse one at a time until you see any change on the voltage reading of your meter.(hopefully someone else has an easier test for you.)
How to unlock a commodore with a flat battery and central locking?
If the battery goes dead flat the door will still unlock manually with the key.
Why does your battery keep going flat?
Something drawing power from the battery, dead cell in the battery, or a weak alternator. Test the voltage at the battery with the engine running. It should read from 13.5-16 volts. Any less and the alternator is bad. If the battery is over 3 years old it is more than likely defective.
What causes a flat car battery?
Using the electronics (lights, radio, cranking engine but not starting, etc) without charging the battery. If you charge your battery, the car starts and runs, but goes flat in a short amount of time, it's possible your alternator is not working properly.
Can you drive your ford expediton if the battery light is on?
yes you can but only until the battery goes flat either the battery or the alternator is bad drive it to a shop or you will end up broke down on the side of the road
Can you charge battery still on car?
Yes, it is charged all the time on the car by the alternator. Just hook the battery charger up and charge it. Just make sure to connect the cable correctly. Additional answer If the battery's flat and you want to charge it without removing it from the car (a common occurrence), just connect it to a charger.
