SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Aux. Battery fix?

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Old Jan 22, 2004 | 06:26 PM
  #1  
55-BEAR's Avatar
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From: South Florida
2008 CLS 63 & 2005 SL55
Aux. Battery fix?

Has anyone come up with a fix for the battery that's always running down within 4 - 5 days??

What a pain in the A$$ !!!

"Bear"
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Old Jan 23, 2004 | 01:28 PM
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SL Boy's Avatar
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I think you might have a specific problem with either the battery or the charging circuit. It should not run down in as little as 4 - 5 days. My consumer battery used to run down in about 2 to 3 weeks if the car was unused. I have recently bought a small top-up trickle charger specifically designed to remain connected to the battery and keep it fully charged. Works well.
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Old Jan 24, 2004 | 04:34 PM
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Tony Musgrave's Avatar
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2007 Porsche Turbo Cabriolet
I endorse what Paul has just posted.

After 3 weeks the 'Consumers Offline' warning comes up but a ten minute drive will put the warning light out. I have a trickle charger now and no more problems.
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Old Jan 25, 2004 | 02:03 PM
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I had a different warning come up after a fairly long period of not having driven. It was a "Visit Workshop" with a battery symbol in red. After a lovely drive in the bright winter sunshine it has disappered.

I assume this is the same thing, the aux battery.

DB1
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Old Aug 29, 2008 | 09:46 AM
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SL55AMG
Originally Posted by SL Boy
I have recently bought a small top-up trickle charger specifically designed to remain connected to the battery and keep it fully charged. Works well.
I just got a trickle charger as well! Question. it is the battery in the boot that i plug the charger on to isn't it???



Thanks Jay
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Old Aug 29, 2008 | 02:42 PM
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Yes Jay it is
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