I have a 2006 S2000 and have replaced the battery 3 times so far since purchasing new.

there is a parasitic drain...you've got to experiment with the fuses and multimeter to find it~ http://www.youtube.com/watch?v=zdIKNnwEjIs

Thanks judge_roy. I've had 3 Honda certified mechanics check this out who have said there is no drain, that I need to drive it more than I do. I'm not a mechanic, but would assume they would run the tests that were outlined in your video link. What do you think?

....well you've got to think what would be the first/most obvious choice...a "courtesy light" in the back? a makeup mirror light? a maplight? there are a lot of lights anymore any of which could be left on...think obvious~

Thanks again. I've checked all that, even though a PICNIC re: cars. My feeling has always been the GuidePoint alarm/tracking feature which was a feature of the car new. Mechanics all said no, that was not the drain. I always shut off everything after parking the car for the night - radio, ac/heat, top locked and loaded, etc. Should I bite the bullet and take it to the dealership? Many thanks.

take it you are not turned on by eric the car guy...me neither, in fact the guy is stoned and talks down to us~....and takes forever to say the same thing again and again~....must be paid by BBB per hour~

but he has a good point...with a multi-meter that does AMPS you can do exactly what he does, but use your head...the obvious~pull the suspect fuses out of the fuse block and don't put them back....one at a time until you found the baddie~that's all eric the car guy was tryin' to tell us~

how often do you drive the car?

daily, 16 miles approx. sometimes more.

...barely enough time to charge the battery back up...especially if you run with the lights on, (like I do)~