Has anyone tried turning the key to the on position but leaving the engine off and hold down the express window up button? My battery gauge seems to take a pretty good drop for however long I hold it down. Scared me the first time... Is it normal for it to drop like that. I had a corvette that seemed to do the same when i held the windows up buttons down for too long.

 

yes

 

while you're doing the express button thing, turn your headlights on to watch them dim as well. tons of fun. . . . .

 

Doesn't that screw up the battery?

 

I'll tell you what else leaves you with a lil suprise.... have the ignition key on just a tiny bit when you pull the key out.... mine has been replaced and was about 1 degree off when it was cammed.... I didn't notice the lil battery light still on... and it was dead when the missus went out the next morning....

BTW.... Delco 91 series batteries cost $109 + tax and core at Pep Boys.

 

Did a different battery make a difference? Im thinking about adding another battery along with the original to my H2 so I can listen to the stereo whileI was it. I was washing my hummer and by the time i finished the battery was real low and when i went to start it, it sounded like it struggled a little bit. The clock on my radio also reset itself to 12:00. I NEED MORE POWER!!

 

Get yourself a yellow top Optima