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Photo DIY- Battery Service W460
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Posted 3/28/2011 9:08 AM
G-AMG
G-Class DIY Host




Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000
Photo DIY- Battery Service W460

Yes, another overly pragmatic post on a bread & butter subject... but a item we can often "overlook".

Since batteries are such a Mission Critical Item, I like to keep mine in tip-top shape, so I am not left stranded somewhere unpleasant.

A good preventative program (ie. at each B-Service) should detect a bad cell prior to battery failure, and one of the ways to protect from a failure is keeping the fluid levels/acid balance in the normal range.

Just a few notes,

1- You are working around ACID (Corrosive), and Hydrogen Gas (explosive) so use appropriate protection.

2- When performing a conductance test, it is important to do the test with the battery in a "relaxed" state. This means several hours after driving, OR if you have driven the car, you must turn on the Headlights for 30 seconds, turn them off, then wait a few minutes for the battery to "normalize".

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#187145
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Author
Posted 8/8/2012 2:06 AM
petermerle
Expert




Date registered: Apr 2006
Location: Cape Town ( deep south )
Vehicle(s): W460 *1, W123 *2, W124
Posts: 1315
1000
Re: Photo DIY- Battery Service W460

A minor correction - I think you mean voltage test not conductance . Conductance is defined by I/V ( http://en.wikipedia.org/wiki/Electrical_conductance ) .
I'm surprised that you are not using a sealed battery - much cleaner and no acid leakage.

Peter
#206361 - in reply to #187145
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Author
Posted 8/8/2012 1:16 PM
G-AMG
G-Class DIY Host




Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000
Re: Photo DIY- Battery Service W460

petermerle - 8/8/2012 2:06 AM

A minor correction - I think you mean voltage test not conductance . Conductance is defined by I/V ( http://en.wikipedia.org/wiki/Electrical_conductance ) .
I'm surprised that you are not using a sealed battery - much cleaner and no acid leakage.

Peter


No, it is, indeed, Conductance. The Midtronics Testing Device somehow uses the resultant Conductance value to determine the Overall Condition of the Battery.

Yes, the Tool also shows the "Voltage", but it is the Green "OK" which is the goal.
#206367 - in reply to #206361
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