battery discharges due to leakage current?????
 

Hi guys,

I have a 2001 C5 in Australia and it has been converted to right hand drive.

I have a problem with a leakage current which discharges the battery in about 4 days. The problem did not exist before conversion, but may not necessarily be related as the car was sitting around for 8 months during the process (also transport on a ship - corrosion??).

I had some people look at it and there was a 0.4 A drain when the ignition was initially switched off. This dropped to 0.2 A after about 10 min when the computers went to sleep. They isolated every circuit by removing fuses one at a time and the leakage was still there.

Apparently the starter motor circuit is the only thing (?????) that is not fused so they suspected it and took it apart and cleaned it.

This certainly reduced the leakage, but it now goes flat in about 8 days, so I suspect the leakage is now around 0.1 A.

The battery does not discharge when disconnected from the vehicle. I have verified this myself by monitoring the open-circuit voltage of the battery for over a week disconnected.

Any ideas??

Alternator rectifier packs can get hurt and back-leak.
This is not that uncommon. Measuring the current
through the charging terminal with key off would tell
you.