Alternators
Car Batteries

On a 1992 Sunbird with a new battery and alternator why would the battery not stay charged?

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2005-08-09 18:44:31
2005-08-09 18:44:31

Make sure the battery cable connectors are clean and tight, bad connections can keep the alternator from charging the battery. also be sure that the belt tensionor is set right if it is bad replace it. You may have an electrical problem, Check all your fuses. If you have a short or an "open" wire touching the body or any other metal area it could slowly drain your battery as well. Had a similar problem(s)...and these were the two answers. a) The trunk light has a mercury switch and when it malfunctions, the light stays on, in the morning the battery would be dead. The switch is attached to the trunk lid opening cables (looks like a black cylinder. It may need to be repositioned ( so the light turns off )or replaced if malfunctioning. b) You may have to take your vehicle out on the highway for an hour in order to give the battery a good charge. City driving does not cut it.

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ALTERNATOR OR THE BATTERY GROUND WIRE Have you tried checking your Alternator? I know this is why mine on my vehicle would not stay charged..

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either the alternator is dischargeing the battery or it is going flat just because its not getting re charged

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it indicates that the alternator is not functioning sufficiently to keep the battery charged.

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I would start by checking the alternator yourself or take it and have it checked. If you had'nt had any battery issuses like hooking battery up wrong It is prob. your alternator.

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The problem is probably the alternator. If the alternator fails to keep the battery charged the battery will keep the car running until it can no longer supply voltage to essential systems and the car will stall.

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If the alternator fails, it is no longer keeping the battery charged and your engine is running on nothing but battery power. Once the battery runs down, your engine will no longer run.

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test the voltage on the battery first, then on the alternator. If its good then it could just be the diode in the alternator. I would suggest you replace it becuase eventually your alternator will die and the battery will not get charged leaving you stranded somewhere. It is possible to just be a battery but you wont know unless you have the battery tested. check the voltage on the battery and the alternator before you do anything else.

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Alternator not working properly or not connected properly. Wherever you bought the alternator take it back and have them check to make sure it works properly. Also make sure the new battery was fully charged when you received it. HTH.

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I would suspect a bad alternator and battery, have them both checked at the parts store. A car with a fully charged battery and a bad alternator will run until the battery is drained and then quit.

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Low/bad battery, bad battery connection. If the battery isn't getting fully charged you might not be able to start. If it isn't getting charged, check the alternator.

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Yes, a poor or open ground would prevent an alternator or generator from being charged.

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is your battery in good condition and fully charged? is your starter good?

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Perhaps the alternator is not keeping the battery charged properly Check the output of the alternator with a voltmeter a fully charged battery should read approx. 12.8 volts without the engine running With the engine running readings should go to approx. 13.8-14.2 volts

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Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery.

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I would say probably not, the reason your battery is weak is I reckon due to a fault with your alternator. It is obviously not producing sufficient power (electricity ) to keep the battery charged. The whining noise is probably caused by worn-out bearings. A replacement or re-conditioned alternator should cure the problem .

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bad solenoid...will usually click up a storm when you turn on the ignition.

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Usually when the battery light comes on its the Alternator, or a bad wire from Alternator to battery, but id check Alternator first.

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Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery. The alternator should have 2 connections.

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yes if one of the wires was getting an earth from the alternator cover or rubbing off the engine the battery light is really an alternator light warning you that the alternator is not charging the battery

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It sounds like it could be an alternator problem, the easiest way to determine this is to disconect the battery while it is running, if it stalls, or bogs out, replace the alternator. ( but it could just be faulty wire conections. ) hope this helps.

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battery light on 2000 f250 will blink if battery is not properly charged. an example is if you have been sitting all day with stereo olaying and engine not running, you have run battery down some. after starting engine and driving, the battery light will blink while alternator charges until battery is fully charged i have only experienced this at night when lights are on creating extra load for alternator ,after running battery down with stereo all day

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Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery.

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Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery.

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usualy if the alternator is not defective then its the battery. you should start by cleaning the battery post. then you could check the terminal wire that runs from the battery post to the alternator. if thats not it you should check the ground on the alternator.

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Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery. You may also have a battery drain (something that is staying on and killing the battery)


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