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    sharonfrye's Avatar
    sharonfrye Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Aug 27, 2009, 04:58 PM
    Dead battery
    Jump started a dead battery,drove down the street car started slowing down battery died again.Could this be the battery or alternator?
    Sharon
    sharonfrye's Avatar
    sharonfrye Posts: 2, Reputation: 1
    New Member
    		  
    #2

    Aug 27, 2009, 05:04 PM

    Jump started a dead battery,drove down the street car startsed slowing down battery died again.Could this be the battery or the alternator?
    mazak's Avatar
    mazak Posts: 148, Reputation: 5
    Junior Member
    		  
    #3

    Aug 27, 2009, 05:19 PM

    Could be either one. How old is the battery? Most auto parts stores will test both for free.
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #4

    Aug 28, 2009, 05:17 AM
    Quote Originally Posted by sharonfrye View Post
    Jump started a dead battery,drove down the street car started slowing down battery died again.Could this be the battery or alternator?
    Sharon
    The alternator.
    But have the battery properly tested to be certain it is still OK.

    You charged the battery and that charge took you as far as it would go.
    Without the correct alternator output, your battery could soon become useless.
    RickMN's Avatar
    RickMN Posts: 244, Reputation: 52
    Full Member
    		  
    #5

    Aug 28, 2009, 08:55 AM

    Your alternator can't charge a dead battery when it's running off a dead battery.

    Read this: Alternators: How they work and how to test
    s_cianci's Avatar
    s_cianci Posts: 5,472, Reputation: 760
    Uber Member
    		  
    #6

    Aug 28, 2009, 09:16 AM
    Test the battery first. If it's old (more than 3 years) then you have your answer. But if your battery is relatively new and in good condition then it's most likely your alternator.
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