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Old Jan 11, 2015 | 05:30 AM
  #1  
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d220
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Default Battery problems

Five year old battery died and i had it replaced, now the new one keeps going dead after a few days. I have taken it to the dealer and was told to put the new one on a long charge. this i did and no change, was told they checked the system and found nothing wrong.Any ideas? Thanks for your time hope you can help.
08 GT 4.6 Calif. Special
Old Jan 11, 2015 | 07:23 AM
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There can only be three possible reasons why the battery keeps draining:

1. Parasitic drain from an electrical accessory (usually ICE system, aftermarket security system).
2. Alternator not maintaining battery charge.
3. Battery faulty and not holding charge (unusual for a new battery).
Old Jan 11, 2015 | 08:43 AM
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cruisin5268d
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Originally Posted by Dino Dino Bambino
There can only be three possible reasons why the battery keeps draining:

1. Parasitic drain from an electrical accessory (usually ICE system, aftermarket security system).
2. Alternator not maintaining battery charge.
3. Battery faulty and not holding charge (unusual for a new battery).
This.
Old Jan 15, 2015 | 07:28 PM
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I guess #2.
Old Jan 16, 2015 | 08:28 AM
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d220
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Turned out to be my CD would not shut off and ran the battery down when i bought the car it had a after market unit in it and wanted to get it back to original, the one i bought off of eBay had the defect they put a new unit in and sent my old one back so now im out the coast of the replacement and the new one coast me 250.00 should have left the darn thing alone. but thanks for your help love this car white GT/CS 08 had 30,000 on it when i got it about a year ago. My wife sells cars and got this for me for my 68th birthday
Old Jan 16, 2015 | 10:52 AM
  #6  
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Originally Posted by d220
Five year old battery died and i had it replaced, now the new one keeps going dead after a few days. I have taken it to the dealer and was told to put the new one on a long charge. this i did and no change, was told they checked the system and found nothing wrong.Any ideas? Thanks for your time hope you can help.
08 GT 4.6 Calif. Special
Had a MB that the power seat module shorted. Worked fine but was always actually cycling back and forth. Movement too small to notice but would drain a new battery overnight. Bear to track down...
Old Jan 17, 2015 | 07:47 AM
  #7  
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Originally Posted by d220
Turned out to be my CD would not shut off and ran the battery down
Looks like it was no.1.
Glad you got it sorted.
Old Jan 21, 2015 | 05:23 PM
  #8  
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New alt.fixed my elec.
Old Jan 22, 2015 | 09:55 PM
  #9  
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Also, if you are using a stock/Shaker sound system, make sure you TURN IT OFF before turning off the key. That will help.

Sometimes you just get ahold of a weak battery, even if new. Had that happen a couple years ago, same symptoms like you're having now. Sometimes it would sit for a few days and start right up. Other times it wouldn't hold a charge for a couple of hours. Replaced it with another, and no further issues. ..but I still make sure the sound system is off before turning the key off..
Old Jan 23, 2015 | 05:52 AM
  #10  
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the car has been in the shop for a week and they found that the hood light had a bad ground and ran the battery down after a couple days have no idea how much this is going to coast



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