Quote:
Originally Posted by jose3382
It seems to be the battery, I have tested the alternator and its charging the battery, but when the jumper cables are removed from the car, the battery wont hold its charge at 12 volts it quickly begins to decline and if I open a door the car completely dies, and battery voltage drops to mid 10.7 to 10.3
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I always thought it is the other way around. A good-working alternator should keep the car running, and all accessories, even if you disconnect the battery, or remove the jumper cables. If the car dies after removing the cables I'd be inclined to say it's the alternator. Or if the car keeps running after you disconnect the battery then the battery is dead.