Your Battery Keeps Going Dead... The Parasitic Draw Test

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GAINMOB

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get ur alt tested to...if its going bad it will drain battery and you'll go through them
 

AVERY CONFER

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I'll test it this weekend. I'll bust out the multimeter and run a drain test. It could be the alt not charging properly too. The battery usually lasts a couple days before I need to charge it and then I start the truck the volt indicator on the dash stays towards the low end, implying the alternator isnt charging the battery? Maybe? I guess I'll find out tomorrow. What's the best way to diagnose a bad alt?

Also keep in mind the battery is fine. Brand new Duracell not even a month old. Puts out the proper voltage when charged.
 

Charles Musick

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stamp11127

stamp11127

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You can use either terminal. The only difference is the polarity connection between the meter and battery cable.
 

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