Strong Electrical drain problem! 1999 Porsche Boxster

[Jaxonalden]

Quote;

"Still have not found the strong electrical drain on my battery. I have to disconnect battery if I let car sit longer than 3 hours! Alternator works great! New 850ca Bosche battery."

It's a new battery (old probably drained also), and the guy lives in Southern Cali. I know all too well about old battery’s and cold weather, they lose their capacity, I grew up in northern Wisconsin. This guy’s situation is different; he has a major short plain and simple. If it's the battery the chances of it affecting both are too great. You said you isolated the problem circuit(s) with a repair or pulled the fuse. What was the problem with the circuit? A short? What was the amp rating on the fuses? A short that didn't blow a fuse yet drained a battery in a couple of hours?

I'm still with Paul on this one.