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post #1 of 5 (permalink) Old 02-13-2015, 03:46 PM Thread Starter
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Default 12v AUX battery dies every 2 days

Hi,
If I dont drive my car for 2 days my car will not start. I then can jump start it and it will run. I had the car for 5 years and batteries usually get bad after that amout of time. So I got a new yellow top optima battery. I still have the same problem. The battery will die after 2 days of no driving. If I drive it every day it will always start. Kid of annoying that if I go somewhere for longer than a day or two and come back to my car I know it will be dead and will need a jump start.

Has anyone else had this problem and fixed it? Please let me know what is the fix

Thank you
pimpingprius is offline  
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post #2 of 5 (permalink) Old 02-25-2015, 01:24 AM
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Sounds like you have something draining power. Make sure there is no light left on and you don't hear pumps running after the car has been shut off. You will get a few things running at and shortly after shutdown, but things should be quiet after a few minutes.

Look for any lights on inside the car too. Those can take a 12V battery that size down fast.
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post #3 of 5 (permalink) Old 11-01-2017, 06:01 PM
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I have this same issue. What was the solution?!?!?
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post #4 of 5 (permalink) Old 06-05-2018, 12:54 AM
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First check your charging unit or your battery is too old and not holding charge..
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post #5 of 5 (permalink) Old 10-16-2018, 10:23 AM
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Do you have an amp clamp or a multi meter ? I would like to see the starting voltage and the rate it is dropping.
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