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Battery Issue

Birmingham AL

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Installed a new speaker in my front door and was running the sound system at volume to check for rattles. Ran less than 5-10 minutes when it cut out, nav display went blank and it was dead. Hooked up a battery charger. After 10  minutes I was able to start the car and I was back in business. 


Does the system pull that much current or do I have a bad battery?  I had it checked 2 weeks ago during service and they told me the battery checked out fine. 


Car seems ti start fine now, as well  


Any thoughts?  Thanks in advance.



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  • 7 months later...

Seems you may have a weak battery OR a poorly charged battery due to many very short trip  .  Check battery voltage with a volt meter when car has been off for a few hours. Google it.   Then you get a good grip on charge level.  For my battery type . AGM type battery ca 12.60 V means 75% charged. 

This is about what you should preeferably be at least for the battery to last.  


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