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Old Sep 20, 2024 | 11:04 AM
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Default Battery Check

Can I rely on my dash to give me an accurate Voltage reading? I’m showing 14.2 driving and at times, 13.8 at idle. Still have warnings popping up but no problem. Time for a new battery? Can’t find a date on it.


TIA
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Old Sep 20, 2024 | 11:10 AM
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Warnings Popping up? Your Voltages seem fine, look for a place that will load test battery for you if it is of concern
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Old Sep 20, 2024 | 11:59 AM
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Originally Posted by DESI6327
Can I rely on my dash to give me an accurate Voltage reading? I’m showing 14.2 driving and at times, 13.8 at idle. Still have warnings popping up but no problem. Time for a new battery? Can’t find a date on it.


TIA
No, dash voltage is usually 0.4 volts or so lower than AT the battery…what warnings ??…if you have no electrical skills take the car to an auto electric shop…if the battery is discharged the battery voltage will be higher and as it get charged it will decrease…if you suspect a battery have it checked.
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Old Sep 20, 2024 | 01:28 PM
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Originally Posted by C5 Diag
No, dash voltage is usually 0.4 volts or so lower than AT the battery…what warnings ??…if you have no electrical skills take the car to an auto electric shop…if the battery is discharged the battery voltage will be higher and as it get charged it will decrease…if you suspect a battery have it checked.
I have a tester, just bought it. Will check at battery. Warnings are minor. Come and go. Tire pressure sensor, passenger airbag, then go away.
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Old Sep 20, 2024 | 01:31 PM
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[QUOTE=cadbob;1608186846]Warnings Popping up? Your Voltages seem fine, look for a place that will load test battery for you if it is of concern[/QUOTE


Forgive my ignorance. “Load test?”
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Old Sep 20, 2024 | 02:06 PM
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[QUOTE=DESI6327;1608187266]
Originally Posted by cadbob
Warnings Popping up? Your Voltages seem fine, look for a place that will load test battery for you if it is of concern[/QUOTE


Forgive my ignorance. “Load test?”
Load testing is where they put a big resistor across the battery terminals and check your battery…that test is more old school…I do a capacitive battery test these days which is a much better test….just bring your battery to Auto Zone and let them test it.
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Old Sep 20, 2024 | 04:41 PM
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[QUOTE=C5 Diag;1608187366]
Originally Posted by DESI6327

Load testing is where they put a big resistor across the battery terminals and check your battery…that test is more old school…I do a capacitive battery test these days which is a much better test….just bring your battery to Auto Zone and let them test it.
thank you!!!
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Old Sep 20, 2024 | 10:21 PM
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Originally Posted by C5 Diag
No, dash voltage is usually 0.4 volts or so lower than AT the battery…what warnings ??…if you have no electrical skills take the car to an auto electric shop…if the battery is discharged the battery voltage will be higher and as it get charged it will decrease…if you suspect a battery have it checked.
Thank you! Warnings:Tire Pressure Sensor, Passenger Airbag. Then they disappear
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