signs of a bad car battery vs alternator reddit

A bad battery can kill an alternator. If your battery is good and your alternator isnt working the battery will still lose its charge because the alternator isnt keeping it charged.

Battery Light On And Stays On 12 2v While Running Installed New Alternator About A Month Ago And Bought New Battery Yesterday Any Ideas R Askmechanics

A battery thats missing 4 volts can only run at 50 power.

. Signs of a bad battery vs. However its not uncommon for the issue to stem from a bad car battery. So youll want to check for the below signs to determine if its just the battery or if its the.

Sometimes it might smell like something is. This is because even though the battery starts the ignition and lights it actually relies on the alternator to keep working when the car is running. If you drove a car with a bad alternator youd notice the radio shut off then the dash lights would wane and lastly youd lose the power needed to fire spark and the car would die.

Alternator is the dash lights and headlights will get lower when your car is idling but become brighter when you rev your engine. Some of the warning signs of alternator going out are similar to the signs of a dead car battery. However your alternator charges your battery while your battery supplies power to your car.

Even a new car battery would die within minutes if it was the only source of. This means that you could have a weak alternator or a damaged battery terminal connection. The car battery warning is not just enough to give a correct diagnosis of.

Check Engine Dashboard Light On. If you notice the lights emerge brightly but slowly begins to dim with time then you have a bad alternator on your hands. A dead car battery is the first sign that something might be wrong with the alternator.

Butttt your batt is old so it might not hold a charge so well and if your in very cold climate it wont help either part. Have the battery tested at Autozone free. Can you Jumpstart a Car.

If you hear a clicking sound or other unidentifiable noises it could be the starter solenoid indicating the battery is under duress. A bad car reddit signs of a bad car battery vs alternator reddit Butttt your batt is old so it might not hold a charge so well and if your in very cold climate it wont help either part. Batteries start the car alternators keep the battery charged and car running.

On a side note a car can run fine for a bit without an alternator depending on design. Another bad alternator symptom when looking at signs of a bad car battery vs. But if the alternator dies completely the battery will die soon afterward because it is not powerful enough to supply electricity to all these components on its own.

So say your car starts to die while on lights dim rpms drop shit like that its pry your alt. It may last a little bit longer but dont expect it to get to an hour. The battery may not have gone out entirely but you may notice something is amiss because of a sound or a slow start.

Figuring out if its a bad alternator vs bad battery can be done with the signs above. Both of these car parts control your electrical system. If you drove a car with a bad alternator youd notice the radio shut off then the dash lights would wane and lastly youd lose the power needed to fire spark and the car would die.

The failures of a battery are sudden while failures of a failing alternator are. Here are the 10 most common symptoms of a dying vehicle battery. If your alternator fails completely your battery is probably going to die in about 30 minutes.

Its not unheard of that a battery could die within 5 or 10 minutes of an alternator failing. But if youre still unsure about reading the signs of a bad alternator or dead battery it doesnt hurt to get your car looked at by a professional who can help. Anything less than that and your car isnt even able to start.

Dim lights are a telltale sign which makes sense since the alternator is part of your cars electrical system. The battery does serve as a power reserve for these components in case the alternator is failing. While having car issues can be a drag you want to stay safe while on the road.

And it may also die much sooner especially if your battery already had a bit of a weak charge in it. The Check Engine light is a catch-all warning telling you something is wrong not necessarily something related to your battery.

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