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Car Battery Question

 
kdog82
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User ID: 79736903
United States
08/11/2022 02:58 PM
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Car Battery Question
I have a 2010 Hyundai Sante Fe.The other day, the car started fine several times and ran fine. Then it wouldn't start. It was pretty much dead.

Finally got a jump from a tow truck driver and it started right up and ran fine till I got home. I took the battery out, put it on my charger and after a few hours it was fully charged. Voltage was 12.8 volts and held a charge over night.

I cleaned the terminals and connectors with sand paper. Installed it back in the car and still wouldn't start. Tried jumping it with my wifes car and still just the lights coming on and some clicking.

Is it the battery not having enough amps or something else?
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T-Man
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User ID: 47885652
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08/11/2022 03:01 PM

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Re: Car Battery Question
maybe the emm start engine thingy is stuck

happened to me once.

lets wait for the mechanics to jump in.

meanwhile

scrumpbump
javierruizleon

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08/11/2022 03:03 PM
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Re: Car Battery Question
Could be bad Alternator not recharging the battery
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javierruizleon

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08/11/2022 03:04 PM
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Re: Car Battery Question
check the date sticker on the battery, most batteries good for 3-5 years
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Anonymous Coward
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08/11/2022 03:07 PM
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Re: Car Battery Question
It's the battery. Just because it reads fully charged does not mean it will start a car. Its wore out.
Anonymous Coward
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08/11/2022 03:07 PM
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Re: Car Battery Question
Bad ground.
T-Man
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08/11/2022 03:10 PM

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Re: Car Battery Question
Could be bad Alternator not recharging the battery
 Quoting: javierruizleon


he fully charged the battery and it didnt start. that should exclude the alternator?
kdog82  (OP)

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08/11/2022 03:12 PM
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Re: Car Battery Question
check the date sticker on the battery, most batteries good for 3-5 years
 Quoting: javierruizleon


I have had the car for about 3 years and never replaced the battery. So my next step is to take somewhere to get tested, but, yeah, I it just needs placing . I think the sticker said 2018, assuming that was the date sticker.
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Anonymous Coward
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08/11/2022 03:13 PM
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Re: Car Battery Question
check the date sticker on the battery, most batteries good for 3-5 years
 Quoting: javierruizleon


Yeah and that also depends on where you live. I had an OEM battery in a Jeep in SoFL that crapped out on me after only two years. Same thing as yours ... wouldn't store a charge.

Bite the bullet and get a new one and depending on where you live, get the most expensive MFer you can.

Also, if you leave the car unused for any length of time, get a tickle-charger for it to keep it tip-top. Don't let it run all the way down as that also impacts battery life.
Justsayno

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08/11/2022 03:15 PM
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Re: Car Battery Question
I was hoping this was going to involve jumper cables and Biden supporters


Never mind
Malu
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08/11/2022 03:17 PM

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Re: Car Battery Question
I'm going through the same thing right now, op.

Literally the same bullshit.
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Anonymous Coward
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08/11/2022 03:18 PM
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Re: Car Battery Question
Bad ground.
 Quoting: Anonymous Coward 62226146


hesright
Anonymous Coward
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08/11/2022 03:22 PM
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Re: Car Battery Question
I have a 2010 Hyundai Sante Fe.The other day, the car started fine several times and ran fine. Then it wouldn't start. It was pretty much dead.

Finally got a jump from a tow truck driver and it started right up and ran fine till I got home. I took the battery out, put it on my charger and after a few hours it was fully charged. Voltage was 12.8 volts and held a charge over night.

I cleaned the terminals and connectors with sand paper. Installed it back in the car and still wouldn't start. Tried jumping it with my wifes car and still just the lights coming on and some clicking.

Is it the battery not having enough amps or something else?
 Quoting: kdog82


At times a battery can appear fully charged until you try to hit it with some serious current draw such as starting a vehicle. This can be caused by a faulty cell or a short between the plates. If you charged it with an outboard charger while the battery was not installed in the vehicle, and the car still didn't start, I'd replace the battery. BTW the clicking sound means that the starter is trying to spin up but there isn't enough current to crank the engine..
Anonymous Coward
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Philippines
08/11/2022 03:24 PM
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Re: Car Battery Question
OP, i have the same car you have for more than 12 years. if the battery is more than 3 years and experiences problems then change it. the battery is already dead.
Crypto-Tard

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08/11/2022 03:25 PM

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Re: Car Battery Question
Could be bad Alternator not recharging the battery
 Quoting: javierruizleon


Check the alternator. If you are driving and the voltage drops because it's not getting charged, you need a new alternator. This could leave you on the side of the road, I would get it checked.
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Anonymous Coward
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08/11/2022 03:27 PM
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Re: Car Battery Question
yeah 3 years is about all they last

the auto parts stores can test the battery if you want to be sure
Aborted Soul

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08/11/2022 03:28 PM

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Re: Car Battery Question
It's the battery. Just because it reads fully charged does not mean it will start a car. Its wore out.
 Quoting: Anonymous Coward 54028161


correct, it should actually read higher than twelve volts..
13 to 14 possibly..
you need a new battery..
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Craft

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08/11/2022 03:29 PM

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Re: Car Battery Question
Could be both bad battery and alternator...

If you CAN get the car started with the battery pull the positive off if it continues to run it's the battery but if it slowly dies or just dies in general after pulling the positive off bad alternator.

I believe that's how it goes...
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Anonymous Coward
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08/11/2022 03:30 PM
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Re: Car Battery Question
Use a load tester... batteries will read charged till you put a load on them... and volts will to 6 or 8...


By the way... this is high school level shit here... you guys need to up your game.
Craft

User ID: 83996573
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08/11/2022 03:31 PM

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Re: Car Battery Question
Look for swelling around the sides of the battery also,
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Anonymous Coward
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08/11/2022 03:33 PM
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Re: Car Battery Question
Most likely the battery itself.

Just swap it out for anew one and go from there.

I've had major issues with batteries and have found it's just not worth the headache running diagnostics.

Could be the alternator caused the initial death by not charging the battery but hey it's time for a new one after being drained to death in the first place.
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08/11/2022 03:33 PM

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Re: Car Battery Question
I have a 2010 Hyundai Sante Fe.The other day, the car started fine several times and ran fine. Then it wouldn't start. It was pretty much dead.

Finally got a jump from a tow truck driver and it started right up and ran fine till I got home. I took the battery out, put it on my charger and after a few hours it was fully charged. Voltage was 12.8 volts and held a charge over night.

I cleaned the terminals and connectors with sand paper. Installed it back in the car and still wouldn't start. Tried jumping it with my wifes car and still just the lights coming on and some clicking.

Is it the battery not having enough amps or something else?
 Quoting: kdog82


At times a battery can appear fully charged until you try to hit it with some serious current draw such as starting a vehicle. This can be caused by a faulty cell or a short between the plates. If you charged it with an outboard charger while the battery was not installed in the vehicle, and the car still didn't start, I'd replace the battery. BTW the clicking sound means that the starter is trying to spin up but there isn't enough current to crank the engine..
 Quoting: Anonymous Coward 80628558



putin-thiss


It's always been the battery for me. Alternator wouldn't have let it charge and drive home since all the cars accessories wouldve drawn from the battery.
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08/11/2022 03:35 PM
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Re: Car Battery Question
It's the battery. Just because it reads fully charged does not mean it will start a car. Its wore out.
 Quoting: Anonymous Coward 54028161


correct, it should actually read higher than twelve volts..
13 to 14 possibly..
you need a new battery..
 Quoting: Aborted Soul


Correct. You need a new battery and after that start the car and stick a voltmeter on the terminals to check it read 14.1 or above, this will prove the alternator is working.
javierruizleon

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08/11/2022 03:36 PM
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Re: Car Battery Question
Could be...

Battery

Alternator

Solenoid

Starter
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Craft

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08/11/2022 03:41 PM

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Re: Car Battery Question
If you don't have a voltmeter pull the GD positive Jesus Christ.

Last Edited by Craft on 08/11/2022 03:41 PM
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BFD

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08/11/2022 03:44 PM

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Re: Car Battery Question
It's the battery. Just because it reads fully charged does not mean it will start a car. Its wore out.
 Quoting: Anonymous Coward 54028161


correct, it should actually read higher than twelve volts..
13 to 14 possibly..
you need a new battery..
 Quoting: Aborted Soul


Correct. You need a new battery and after that start the car and stick a voltmeter on the terminals to check it read 14.1 or above, this will prove the alternator is working.
 Quoting: Anonymous Coward 80764306


I've got the same problem... new battery, new alternator.

Some days it holds a charge, other days I come out and it won't even click.

No rhyme or reason so I'm thinking it's a short somewhere.
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javierruizleon

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08/11/2022 03:49 PM
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Re: Car Battery Question
It's the battery. Just because it reads fully charged does not mean it will start a car. Its wore out.
 Quoting: Anonymous Coward 54028161


correct, it should actually read higher than twelve volts..
13 to 14 possibly..
you need a new battery..
 Quoting: Aborted Soul


Correct. You need a new battery and after that start the car and stick a voltmeter on the terminals to check it read 14.1 or above, this will prove the alternator is working.
 Quoting: Anonymous Coward 80764306


I've got the same problem... new battery, new alternator.

Some days it holds a charge, other days I come out and it won't even click.

No rhyme or reason so I'm thinking it's a short somewhere.
 Quoting: BFD


Check the fuse box
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08/11/2022 03:50 PM

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Re: Car Battery Question
Dead cell(s)
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Craft

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08/11/2022 03:51 PM

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Re: Car Battery Question
It's the battery. Just because it reads fully charged does not mean it will start a car. Its wore out.
 Quoting: Anonymous Coward 54028161


correct, it should actually read higher than twelve volts..
13 to 14 possibly..
you need a new battery..
 Quoting: Aborted Soul


Correct. You need a new battery and after that start the car and stick a voltmeter on the terminals to check it read 14.1 or above, this will prove the alternator is working.
 Quoting: Anonymous Coward 80764306


I've got the same problem... new battery, new alternator.

Some days it holds a charge, other days I come out and it won't even click.

No rhyme or reason so I'm thinking it's a short somewhere.
 Quoting: BFD


If that's the case this is a two-man job and will require a voltmeter check your voltage at the battery like the gentleman have been saying should be reading 14 volts

While someone is observing the voltmeter someone should start pulling fuses until you find the circuit that is bleeding ...

At the beginning voltage will start to drop when you find the correct fuse the voltmeter will equalize and not move.

Last Edited by Craft on 08/11/2022 03:54 PM
Craftdragon screw a coffee buy me a beer or a membership $chank3567 cheers! If this goes against any GLP rules I will gladly remove my personal signature. <3 8) twit @craft8431
Anonymous Coward
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08/11/2022 03:54 PM
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Re: Car Battery Question
It's the battery. Just because it reads fully charged does not mean it will start a car. Its wore out.
 Quoting: Anonymous Coward 54028161


correct, it should actually read higher than twelve volts..
13 to 14 possibly..
you need a new battery..
 Quoting: Aborted Soul



No way, 12.8 is fully charged, but a really good battery could read 13.1. Never 14v.

OP, take it to the auto parts store and get it load tested.

If it passes the load test you're looking at a bad terminal or bad starter.
Anonymous Coward
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08/11/2022 03:54 PM
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Re: Car Battery Question
Could be bad Alternator not recharging the battery
 Quoting: javierruizleon


Not likely. If you have a bad alternator your car wont run or start. Just get a new battery sport and call it a day.





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