Electric power loss

Discussion in 'General Super Duty Discussion' started by dboyw, Jun 14, 2013.

Car Parts
  1. dboyw

    dboyw Full Access Member

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    What is the best, or easiest, way to track down battery power loss? Truck sits for about a week and batteries go from 13+ to 9+ volts.
     
  2. DaveBen

    DaveBen SDD Senior Member

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    Have the batteries (individually) load tested. The voltage tells how high the battery is charged, but the load test tells if the plates are capable of delivering the current to the loads. Replace them in pairs if even one is bad. What yo have is one battery in two places.

    Dave :)
     

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