1997 Jaguar Vanden Plas Battery Charged 12 0 Volts Every Time Try Start Car

1997 JAGUAR VANDEN PLAS
86,000 MILES
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SOULMAN1
  • MEMBER
  • 1 POST
battery is charged at 12.0 volts every time i try to start the car the battery discharges could this be the alternator is bad
Dec 27, 2012 at 9:16 PM
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CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,309 POSTS
12.2 volts or less means the battery is good but totally discharged. Charge it at a slow rate for at least an hour, then remeasure the voltage. It must be near 12.6 volts to be considered fully-charged. If that's what you find, measure the battery voltage again with the engine running. It must be between 13.75 and 14.75 volts.
Dec 28, 2012 at 5:40 AM
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