[SOLVED] Battery loses charge UNSOLVED - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2006 - 2009 TrailBlazer SS Tech > The 06-09 SS "How-To" and DIY Section

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  #1  
Old 11-13-2015, 02:02 PM
hdhunr hdhunr is offline
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2008 Chevy TrailBlazer SS (3SS)
Liquid Silver Metallic 6.0L LS2 V8 2WD
Join Date: Nov 2015
Location: Rowlett, TX
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Battery loses charge UNSOLVED

HELP! My '08 TBSS fails to start when I let it sit for 24 hours or more. I have had the battery, alternator, starter, and anything connected with those parts checked out and they are all fine. When it will not start, I can attach a battery charger to it and it will crank right up after about 2 minutes.
I cannot locate any lights or electrical accessories that are staying on when they ought to be off.
My guy at O'Reilly's suggested I post to this forum.
Has this happened to anyone else? If so, what was the solution?
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  #2  
Old 11-14-2015, 08:55 AM
ddgm ddgm is offline
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2006 SAAB 9-7x
Lingonberry Red Metallic 4.2L I6 AWD
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Was the battery load tested? I suspect you have a bad battery or battery cable connection issues.
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  #3  
Old 11-29-2015, 05:09 PM
zazola zazola is offline
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2005 Chevy TrailBlazer LS EXT
Graphite Metallic 4.2L I6 4X4
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Trailblazer, Battery Discharge

I have a 2005 T/B EXT and have had the same issue going on three years now. Replaced the battery and same thing; only mine will last about 5 days. Now, if I am going to leave it over 5 days, I disconnect the battery. Was going to disconnect the starter because I thought that may ne causing it...Good luck!
Also does not show any load draw any more than the computer...
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  #4  
Old 11-29-2015, 07:03 PM
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EnvoyBoy2004 EnvoyBoy2004 is online now
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2004 GMC Envoy SLT
Graphite Metallic 4.2L I6 4X4
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Parasitic battery drain is something that needs to be checked carefully. When the truck has been shut down for at least 10 minutes (time for devices to go into sleep mode), a current draw of about 150- 200 mA is normal. Anything more than that is a problem and needs to be identified by pulling individual fuses one at a time.
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  #5  
Old 04-20-2016, 07:21 PM
lockard lockard is offline
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2002 Chevy TrailBlazer LS
white 4.2L I6 4X4
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I have same problem with mine.Did you get yours fixed?

I have same problem with mine.Did you get yours fixed?
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  #6  
Old 09-04-2016, 08:18 AM
bobcnj bobcnj is offline
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2008 Chevy TrailBlazer LT
Graystone Metallic 4.2L I6 4X4
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Location: New Jersey
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08 Trailblazer

I've had the same problem on my 08 Trailblazer, sometimes I see the battery gauge on the car charging them other times I see it on the negative side. Brought it to the dealer and they cannot locate the problem. Brand new battery so they told me it was my after market blue tooth FM transmitter which I leave on overnight. Now I disconnect it and I still get the same problem.....HELP!
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  #7  
Old 09-05-2016, 12:02 AM
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GdoubleU GdoubleU is offline
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2005 Chevy TrailBlazer LS
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Either the battery is old & can't hold charge or possibly the battery was never charged back to 100% when drained. Or the dreaded keyless discharge .
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  #8  
Old 09-05-2016, 04:35 AM
-Ray- -Ray- is offline
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2002 Chevy TrailBlazer LS
Indigo Blue Metallic 4.2L I6 4X4
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Quote:
Originally Posted by bobcnj View Post
I've had the same problem on my 08 Trailblazer, sometimes I see the battery gauge on the car charging them other times I see it on the negative side. Brought it to the dealer and they cannot locate the problem. Brand new battery so they told me it was my after market blue tooth FM transmitter which I leave on overnight. Now I disconnect it and I still get the same problem.....HELP!
Read post #4.
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  #9  
Old 11-08-2016, 12:18 PM
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sportute man sportute man is offline
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2005 Olds Bravada
Fire Engine Red! 5.3L V8 4X4
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Quote:
Originally Posted by -Ray- View Post
Read post #4.
September 2016 I worked on my brother-in-law's 2004 Envoy. His problem? Without fail, the battery would go dead after sitting after 18 hours. I used a DC Amprobe that I clamped around the positive side of the battery cable. Some use a volt meter?

He had already installed a new battery, alternator, starter, and some window switch a local GMC Dealer said he needed.

After checking several potential problems, I found nothing until I removed the after market radio. Once the radio was removed, the parasitic drain disappeared!

Why a aftermarket radio drains the battery in these vehicles? I can't tell you? However, I did use the search button on this site plugging in "parasitic drain" and found this particular problem (among others) is more common than many may think (including myself). It's been about 1-1/2 months since doing this. Now the battery stays charged like it should.

It may not be much of an answer? I hope it helps in some way. And you're able to locate your problem. I understand additions like remote start, aftermarket radios, Bluetooth and such can and often do cause a host of problems?

Good Luck....
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  #10  
Old 01-30-2018, 05:01 AM
Bighossman Bighossman is offline
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2006 Chevy TrailBlazer LT
Silver Blue Metallic 4.2L I6 4X4
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Had problems with the instrument cluster on these trucks not allowing the BCM to go to sleep...have your mechanic check for a parisitic drain.
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