Question about 2005 Ford F 250 Super Duty

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Battery losing charge

2 brand new batteries and a brand new alternator. On red wire of alternator I received 14.75 volts and I rec'd 14.35 volts to the battery. Used truck for a couple of hours, then cut truck off. Truck would not crank back up.

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If its pushing that much current into a fully charged and brand new battery it is over charging and collapsing the cells in the battery.

Posted on Nov 27, 2008

  • tony yeatman
    tony yeatman Nov 27, 2008

    Also did you multi meter that number while vehicle was idleing?If so its over charging.

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