Cadillac STS Forum - 2005 through 2012 Discussion, Do I need a new battery in Past Cadillac Vehicle Discussion; Last week I was waiting to pick up my son from school. With the engine off, I sat for about ...
Last week I was waiting to pick up my son from school. With the engine off, I sat for about 15-20 minutes with the radio running, but not jamming. My other son adjusted the seat a little and I opened the sunroof and maybe raised and lowered a window.
When I tried to start back up - just clicking. I had to get it jumped.
If I have the battery display on when starting the car, it starts at about 13.0 and rises to around 14.3 or 14.4. I don't have anything to test it before starting. I took the car to a car parts place and had them check the battery and was told that its got about 430+ cranking amps and that it is OK.
It's a 2006 Northstar 1SF. I bought it 4 months ago. I believe this is the original battery.
So, do I need a new battery? I know all the electronics is hard on the battery, but 20 minutes seems awful short to need to get jumped.
dnett, curtc is right about the car eats battery. Same thing happen to my battery. Had it tested & it showed good. The 2nd time the car didn't start, I had to jump start it again. A New battery went in. Went to Walmart got the biggest battery that would fit in the space. Danny
Went through this last week as I was leaving work. Car went into some kind of 'Theft disable mode' where it wouldn't even allow me to jump it. Finally it timed out and allowed a jump a couple hours later. Had a 101 A/C delco in there that was only 26 months old, they would not stand behind their warranty without the receipt.
Ended up putting a 78 series Duracell in there from Sams, way better battery stats for less than half the cost and fit just fine even with the cover on.
I was pretty sure I needed a new one, but when the parts store guy said it was OK after testing - I wasn't sure. Bought a new 101 from Advance Auto and put it in today. The old one was the original factory Delco.
The correct procedure is to test under load. The STS is a demanding application. Most batteries are now made by divisions of Johnson Controls but they are made to different specs. In general, you pay for what you get, whether it's a good battery, a good warranty or both.
I've had parts store guys tell me batteries are good when I know they're not. Even had one guy tell me he could not sell me a battery at all because mine tested ok. Total Idiot. Just took my business elsewhere.
And the other place said it tested bad, which I already knew. I didn't even want their opinions. I just wanted the core credit.