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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 | 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". G (1.JPG) (2.JPG) (3.JPG) (4.JPG) (5.JPG) (6.JPG) Attachments ---------------- 1.JPG (76KB - 1 downloads) 2.JPG (85KB - 1 downloads) 3.JPG (72KB - 1 downloads) 4.JPG (90KB - 1 downloads) 5.JPG (87KB - 1 downloads) 6.JPG (78KB - 1 downloads) | ||
#187145 | |||
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petermerle Expert Date registered: Apr 2006 Location: Cape Town ( deep south ) Vehicle(s): W460 *1, W123 *2, W124 Posts: 1315 | 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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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 | 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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