So, here is the story in short. A couple months back, if my 850 would sit for 3 days or so the battery would be dead but as long as you drove the car everyday everything was fine. So I had the battery (replaced last Jan.) and the alternator checked a few weeks ago. Turns out the alternator was bad and battery was fine. So I replaced the alternator and definitely saw an increase in voltage and better charging. But, still the same problem, if the car sits 3 days, the battery is down to 11 volts and wont start. No lights are staying on or anything. Maybe a bad relay? What am I missing that is discharging the battery? Any help would be great!

 

Ideas, plenty. Best way to solve this, hook up a volt meter and start pulling fuses to find were the draw is coming. GL

 

ok, I will start with that.
Thanks

 

Ok, so the glove box light was on and had a .13 amp draw on the battery. Hopefully that fixes it. Thanks guys!

 

Glad to hear it!!

 

Good place to toss in an LED replacement. If an LED stays on it won't drain the battery for days.
Always best to figure out what it takes to get the switch to turn off when the glove box door is closed.