Had a dead battery yesterday, by dead I mean 2.2 volts left.
Nothin that I know of major has changed. However I have had an issue with my brake sticking. I suspect they stayed on and might have Killed my battery. I drive the Jeep at lunch, 4 hours later my battery was at 2.2volts. I would not have thought that the led lights could drain that much.
Is this my issue? Or should I trouble shoot something else? Thanks
Thanks for the replies, I didn't think that sounded right either. I am not even sure they were on, the battery was so dead they wouldn't even work.
It was so dead I couldn't push it off or jump it. Had a guy walk beside me with a jumper battery hooked up while I pop started it. It struggled that way...but was able to get it going.
I charged it up last night, unplugged this morning. I will see what happens when I get home and try to start it. I am going to test the voltage again before I crank it. I know the alternator is working as once I got it running the system was at 14 volts at idle.
Could not find multimeter. Thinks its at office as that's where I did my troubleshooting last.
Hooked the battery up to the charger. Indicator needle on the charger is sitting at 6 amps input, and has been for nearly 3 hours.
This was after running the jeep for an hour yesterday with the system at 14v. And charging. it was really low though so it might take a long time to catch up. Just trying to confirm a bad cell. It's looking more and more that is my issue.
I have had it checked. Autozone said it was bad on their tester(closer to work). Drive it over to advance where I bought it a year ago, and their tester said it was good. The issue seems to be somewhat intermittent and unpredictable.
Just got to get it to duplicate so I can get a new on warranty...
They should replace it free of charge (no pun intended) if the battery is within its warranty time period. When you get the new battery installed, look at how its mounted. Make sure its sitting on a rubber pad or other energy absorbent pad. Vibration will kill a battery fast.
Beat it to fit, paint it to match!
I will get a pad or something with the new battery, the problem is they won't give me a new battery because the two times I have had advance test it, it load tests ok.
Last reading pulled was 13.8v with the engine off. I know from experience in another vehicle that sometime when cells start to go, it's unpredictable at first. But eventually the battery consistently shows low voltage and I'll get a new one...thanks for all the replys.
You need to check for voltage loss when everything is off. I went thru the same with my diesel Ford truck. They would go down 50% overnight without being hooked up. I went to a repair shop that certified that and had to threaten to sue them. Then they replaced the batteries. Make sure you have good grounds and cables. Replace the cables like Jeep Hammer says to do and all of your electrical will work better and last longer.
It had to have been my tail lights. I charged the battery. Hooked everything up, let it sit for 2 days without running it. Voltage drop is approx .15 volts per day. That has to be normal or better than. I ran it Saturday, double checked my electric fan to make sure it was not running too long, that was good.
I replaced all cables etc. 3 months ago. New starter, only thing not new is the alternator, and as stated above it is working fine. I could still have a bad cell, but I have not been able to duplicate that low voltage, so if I do, it is very intermittent. I will let you all know if something changes. Thanks for all the input.