My 2005 CTS V sits in a climate controlled garage. Well it sat for two weeks and when I went to crank it to take a buddy to lunch it would not turn over or even click the solenoid. I put it on a smart charger and it appears to be taking a charge. I've checked for interior lights left on and there is nothing on. I called a mechanic friend and he said the computer will pull the battery down if the car isn't driven regularly. I have other computer vehicles that sit for longer periods of time and they have no problem cranking. My mechanic buddy says I need to buy a "battery tender" and keep it plugged in when not using the car. That sounds like a bubble gum and tape fix.
Anyone have an idea of what could be causing the battery drain?
Do you take out the V for just a quick trip and then let it sit for 2 weeks?
I used to store my V1 in the winter. One winter, I went to see it and start it. It had sat for 4+ months and fired right up. When I went back less than 3 weeks later, it wouldn't crank at all. When you start it, you need to drive it.
A battery tender is not a bubble gum and tape fix. It's a needed tool for cars that sit for awhile. Or disconnect the battery...
If I let my car sit for more than 4 or 5 days without starting it, the battery will be dead. A couple years ago, I got a battery tender and hook it up whenever it is going to sit for a while and have had no problems since. It's inexpensive and works.
As for what is causing your drain, I don't know. I was told that having lojack (or similar product) on your car could cause your computer to wake up constantly which could drain it, but I don't really know.
Any updates in your battery situation, Bertbart? If you'd like me to investigate anything further for you, don't hesitate to email me anytime at Katie_Lucille@gmexpert.com. As the community demonstrated, many different factors could be responsible for the drain, and I hope their feedback has been helpful!
Well he battery took a charge. I drove it 40 miles or so today. I'll be checking it for any voltage drop over the next few days and see what happens. If there is a significant drop then I'll test for parasitic drain with a meter.
Thank you to all who took their valuable time to answer.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Cadillac Owners Forum
4.8M posts
369.7K members
Since 2002
Cadillac Forums is the perfect place to go to talk about your favorite Caddys including the ATS, CTS, SRX, Escalade, LYRIQ, Vistiq, concept and future Cadillac models.