Electrical question

[Jacob]

I’m having trouble with my battery going dead on my 300CD. I recently replaced the voltage regulator. My favorite electrical shop says the alternator is otherwise OK. Main question is what should the system resistance read across the battery leads when they are disconnected. I am looking at about 3k Ω using an analog VOM. The digital meter gives a really varied reading. I removed each fuse with no change in the reading. So, is 3k Ω normal? Any suggestions? - JA