CHARGING

Tiny
WJODONL
  • MEMBER
  • 2005 DODGE TRUCK
  • V8
  • 4WD
  • AUTOMATIC
I HAVE NOTICED TODAY THAT MY BATTERY GAUGE IS SHOWING THAT MY BATTERY IS CHARGING ALL THE TIME
Wednesday, December 8th, 2010 AT 5:41 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Measure the battery voltage with the engine off and with it running.

Off should be near 12.6 volts fully charged. If you find closer to 12.0 volts, it's good but discharged. At 11 volts or less, suspect a shorted cell and the battery must be replaced.

At idle you must find between 13.75 and 14.75 volts. If it is higher than that, you'll need to measure the two voltages on the two small wires on the back of he alternator and we'll go from there.

Caradiodoc
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Wednesday, December 8th, 2010 AT 5:47 PM

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