battery drain

[dna]

Have a '03 H2 - had it about 4 years now. Practically since I had it, I had a dead battery all the time. It was under warranty for the first few years and I had it checked, but they found nothing. Though I would still get a dead battery every few months.

I found that if I put a new battery in, I would get a good 3 months of no problem, and then it would start. It would be irregular.

I eventually installed a battery guard which cuts power when the battery gets to a dangerous low voltage. This works great to prevent me from having to jump it, though it does get old - having to override the battery guard almost every 2nd day.

So, my questions are:

1) if I put a multimeter in line, what is "normal" drain when in 'off' position
2) I've heard that many other H2 had this same problem - what are the typical causes.

BTW - I do not have many custom electronics - most is stock.

Thanks