THIS CAR HAS A NEW BATTERY

  • Tiny
  • Anonymous
  • 1990 Mercedes Benz 300e
  • 210,000 miles

This car has a new battery. The alternator is putting out 13.2 volts, but after driving it for a day and a half the battery is dead. Why is it doing this?

Friday, November 30th, 2012 AT 1:57 AM

1 Reply

  • Tiny
  • caradiodoc
  • Expert
  • 25,437 posts

13.2 volts is way too low. The voltage must be between 13.75 and 14.75 volts. You're running off the battery which won't last long.

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Friday, November 30th, 2012 AT 3:05 AM

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