All the details for Comet are below except that it has ~6,800 miles on it. My car sat for two days in the garage. Anyway I went to go to work today and I opened the door and I had no lights or power at all. Comet wouldn't start and nothing worked. Fortunately I could jump it with my wife's minivan. Drove to work and everything seemed fine. Big test is will it start at the end of the day. Nothing was left on and the door wasn't ajar. So what could cause this? I don't leave the radio on with the key/FOB in or any other thing like that.

 

my oem battery on my 1997 gmc sonoma failed at 6 months and was replaced under warranty

my battery failed "open" ie zero volts, would not recharge, could not jump the truck

my guess is either a bad battery (remember, batteries are mass produced in the 10s if not 100s of millions/year) or you have an electrical fault

in either case a trip to the dealer is in order

scott

 

Any add-ons plugged into the car? Like an UltraGauge? Those are known to "wake up" the car after a while, which can drain the battery.

 

No add-ons. Only mods are shorty antenna and door trim so I avoid dings.

 

Thanks. I couldn't get an appointment today. Tomorrow at 10:00 am.

 

My wifes new MINI had a dead battery at less than 1500 miles. Took it too deales and they put new one in at N/c. When a battery goes it goes.

 

So my battery was discharged by the radio turning itself on and off 254 times over the weekend. They will have to reprogram the computer to stop it from happening again. This takes 8 hrs. No loaner with an AT was available today so I have to bring it back on the 17th.

I had to laugh. So I wonder whether we control the machines or they control us

 

Does anyone know if leaving the keyfob inside the car drains the battery? My battery is dead, ...I haven't driven the car for about a week in a half. I left the keyfob in the front cup-holder (parked inside my garage). I have never left the keyfob inside the car overnight, ...wondering if having the keyfob in the car didn't allow the car to go to sleep? -and thus drained the battery over the week or so I didn't drive it?

 

does yours have keyless comfort access? if so, ca will not let the MINI sleep.

 

yes, ..I learned the hard way that the MINI won't sleep w/ keyfob near by.

I put a charger on the battery overnight, and tested w/ a load charger, it seems to be close to fully charged.

I am going to go shower then take it for a loooooong drive (assuming it starts).

keep fingers crossed.

 

started right up.
lesson, -don't leave key fob in car for week w/o driving car!!

 

Just had this problem last week. However, after they reprogrammed & I drove to dinner then home, I had a dead battery again the next morning. They kept it for several days and couldn't replicate. Can turning car off but leaving radio still turned on cause that? I've always done that with no apparent problem before.

 

I am sorry I missed this. I do it all the time too. No issues except the one time. Hopefully you got this fixed.