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What is a likely explanation when an alternator is overcharging a battery?
Wiki User
∙ 12y ago
Defective voltage regulator.
Wiki User
∙ 12y ago
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Why does your batteries keep dying in your 1998 international bus?
Alternator is more than likely overcharging the battery. The voltage regulator is bad. It may be built into the alternator.
If an alternator overcharges the battery a likely explanation is that the?
The voltage regulator is not working properly.
Why is your 2007 grand prix overcharging your battery?
Voltage regulator is more than likely defective. The Regulator is built into the alternator so you will have to replace the entire alternator. Just make sure it is really overcharging. You should read from 13.5 to around 15.5 volts with a digital DC voltmeter if the alternator is performing as it should. Must more than 15.5 volts and it is overcharging.
Can a bad alternator cause a battery to be unchargable?
Yes, it can ruin the battery by overcharging it. If you are reading between 13.5 to 15.5 volts at the battery with the engine idling then more than likely the alternator is good and you battery has a dead cell. A fully charged battery will read 12.6 volts with the engine not running.
Do batteries have to be replaced simultaneously with alternators. I replaced my alternator but was told it likely damaged the old battery so I'll need to replace it. True?
No, the battery may be defective and the alternator may be just fine or vice versa. Saying that if the alternator was overcharging the battery it may very well have destroyed a good battery. Just have the battery checked at any auto parts store.
Why did my cars battery boil over?
It could actually be number of things.... as long as you yourself didn't over charge it. More than likely it's something overcharging your battery. The first thing I would do is get your alternator tested. Most commonly that is the problem. I have heard that some chryslers have computer problems overcharging the battery also, not sure what model you have tho.
Could having the alternator wires hooked up wrong cause it to over charge?
No, it wouldn't do that, not to mention most manufacturers try to do something to make the alternator as foolproof as possible, such as different sized ring terminals from the battery positive to the alternator than what's used from the alternator to the ground. If your alternator is overcharging, you likely have a defective voltage regulator. It's an integral part of the alternator.
Why does battery light stay on in 1993 400 SC Lexus?
Likely the battery or alternator, but probably the alternator
Why would dashlights brighten upon acceleration?
It means that the voltage is going up as the alternator spins faster. 4 posibilities; 1 Your battery is dying and the alternator is working harder to charge it when you accelerate. The lights are comming up to full brightness. 2 You have a bad connection at the battery terminals or frame ground and the battery can't hold the voltage down. The lights are receiving too much voltage and are more likely to fail. 3 The voltage regulator on the alternator is failing and overcharging the battery. The lights are receiving too much voltage and are more likely to fail. 4 The battery needs water. The lights are receiving too much voltage and are more likely to fail.
When a battery goes bad does it ruin the alternator?
Not likely but as alterantor keeps trying to charge a weak battery it may wear out, however as you are not likely to keep a bad battery in the car for so long there should be no damage to alternator if battery is replaced.
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.
Can car die while driving if it is just the battery not the alternator?
Not likely.
