[s-cars] Battery update, C4 A6

[JC]

Kent - Good process except also with the 5000/200 there's the notorious main
positive cable splice which can corrode and go short or become resisitive -
so always a good thing to look into early in 200 battery problems.  To copy
the  instructional style: 1. Connect ohmmeter (using long cable) to
disconnected positive battery cable under seat and to positive alternator
connection in engine compartment. 2. Is there excessive resistance?  3. Now
Connect one end of meter to gound. Is there leakage (less than infinite?) 4.
If yes to either one, repair or replace main battery cable...

>
>
> Finding a battery drain:
>
> 1. Disconnect the + cable at the battery.
>
> 2. Connect a DVM between the + terminal and the + cable.
>
> 3. Set the DVM to measure milliamps (and don't try starting the car).
>
> 4. Note the amperage you are starting with. (If it is less
> than X ??? ma, there is no drain. The radio (memory) and
> alarm system? will produce a minor drain on the battery. We
> are looking for a bigger drain that kills the battery in a
> week or two.
>
> 5. Pull one fuse at a time. Note the change in amperage.
>
> 6. When you pull the fuse that makes the amperage approach 0,
> you've found the drain.
>
> 7. Replace that fuse and keep going; you may have a 2nd drain
> on the battery.
>
> 8. Determine which loads are protected by the fuse identified
> in step 6 (or 7).
>
> 9. One at a time, remove each load to see which one is
> causing the drain.
>
> 10. Repair or replace the problem found in step 9.
>
> Comments and corrections welcomed, especially the minimum
> value that is an acceptible drain.
>


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