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Won't charge or come on. Can the internal battery be replaced

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  • rooonee
    rooonee Oct 25, 2012

    do you have an optima battery?

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This appears to be a fancy car battery charger, some of them can't "see" an
optima battery because it's internal resistance is too low. they do make chargers that will charge the optima

Posted on Oct 25, 2012

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What can this issue be? Pls I charged the battery for over two hours and it still won't start even if I have jumpers attached?


Gary, Do you mean car will not start, or do you mean it will not turn over. If it does not turn over, even with boost, battery cables bad,starter relay or fuse bad, or starter defective.
Trouble shooting links below.
Show your appreciation and press the helpful button and follow me on fixya for more tips and info
Engine Won Crank or Start


https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwiN1MOfp_3KAhWltoMKHdZPA4YQFgghMAE&url=http%3A%2F%2Fwww.agcoauto.com%2Fcontent%2Fnews%2Fp2_articleid%2F253&usg=AFQjCNEZxvRFnI5ZWt5HxxASWILn8ksLSA

Engine Won Start No Crank Diagnosis Troubleshooting Starting System Issues

Feb 16, 2016 | Cars & Trucks

1 Answer

My car will not start. The battery is new and has a full charge and turns everything on when I turn the key but when I try to start it, it will not do anything not even clicking noise.


if the battery is good it is NOT the alternator. the alternator charges the battery, if it won`t start with a new battery the alternator does nothing to affect the situation. check voltages at the starter motor connections for proper voltages even the wires that the ignition switch supplies power to. if you have proper voltages at the starter you can try hitting the starter while someone tries to start the car. if it starts the starter is worn internally and will have to be replaced.

Aug 05, 2015 | 2003 Hyundai Santa Fe

1 Answer

Battery light stays on after changing battery,alternater & plugin.


Is the system charging? You should have 14.2 14.6 volts at the battery. The charge light is controlled by the alternator internally. If the charging system is working, you could have a bad diode inside the alternator keeping the light on or a short/grounded circuit to the battery light

Apr 11, 2015 | 2003 Ford Windstar

1 Answer

The battery won't stay charged


Hi it is possible that you Alternator is faulty,if you have access to a VoltMeter ,check the battery voltage in the morning before you try to start it you should have around 12.7 volts for a charged battery if not fully charge your battery again and check the voltage with your car running you should have around 14 volts with the engine reving at 1500 revs.ifyou get around 12 volts then your lights are taking more power from the battery than the Alternator can replace.You could also get your local garage to Drop Test your battery to see if any of the Cells are faulty

Jan 11, 2013 | 1987 Volvo 740

1 Answer

My daughter 2004 Kia won't hold a battery charge.


voltage regulator. it may be in the alternator, or remote mounted. ((the alternator can be charging, but if voltage regulator is'nt working then it won't allow voltage to get back to the battery to keep it charged

Sep 07, 2012 | Cars & Trucks

1 Answer

Replaced headlight bulb now truck won't start.


It had all the symptoms of a low battery. Glad you got it figured out!

Feb 25, 2012 | 2001 Lincoln Navigator

1 Answer

Have 97 acura won't stay charge changed battery


the battery wont stay charged? if youre putting in a fully charged battery and your car runs, but then the battery slowly dies, the problem will be your alternator. the alternator is what maintains a car batteries charge. try replacing the alternator. hope this helps.

Aug 15, 2011 | 1997 Acura Integra Type R

1 Answer

Two new alternators on and the car still will not charge and it kills alternator. Need to know what to look for in the wiring harness. Auto Zone tested alternators before installation. Still won't...


Go to web site WWW.HMASERVICE.COM and register your vehicle by VIN #. You'll then have access to shop manuals, wiring diagrams, technical service bulletins, illustrations, etc.
Provided there is no problem with the vehicle's wiring, find out what the charging current is to the battery. I've seen batteries which TEST good, but when under a CHARGE short out internally.
Example: Tested a battery & charging system on a Hyundai Elantra, the battery tested "Healthy" but indicated there was a CHARGING SYSTEM PROBLEM. I checked the battery voltage while the engine was running and found the battery voltage at 14.3 VDC (which was normal). I then used a Digital DC Clamp meter arount the positive (+) battery cable & found the battery was charging at 70 Amps!.. it was supposidly already fully charged (should have only been taking 4 to 6 amps when fully charged).

Best guess without looking/diagnosing the vehicle myself

Maybe this will help.

Jun 30, 2011 | Hyundai Elantra Cars & Trucks

1 Answer

I have an 86 toyota pcickup battery charge light is on have good battery and replaced alternator twice.


i think you have an external voltage regulator in that year , ck that first . The easy way to tell if it has an external regulator ,if it has carburated it has an external regulator if its fuel-injected its internal regulator in side the alternator.Have you checked to see how much voltage the charging system is putting out at an idle ? It should be around 13.5 volts to 14.5 volts any less then 12.5 charge light won't go out.

May 05, 2011 | 1986 Toyota Pickup 4WD

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