battery issue
battery issue Having a battery issue. New battery does it, old battery did it....I can last about 15 minutes in accessory mode then the car won't start dead battery. Door/trunk open working on the car for 15 minutes...dead battery. I've got new terminals no help.
Make sure your battery cables are good and your alternator is charging properly. These are simple things that are often overlooked.
There is something drawing power. Disconnect the positive battery cable, put a meter between the battery and the positive battery cable to measure amps. See how much is being pulled. You can start removing fuses from the fuse panel (only one at a time) and see which one drops the amount of amps being pulled. This will help you narrow down what it is.
I also install stereos and I'm a rocket science so there. But seriously, I don't blast the radio and I used a 2 farad cap. It would last at least an 1.5 hours. I always take my family to the drive in theater and we could watch a whole movie with my system on. Then between movies (they play 3) I would turn the car on for 5-10 mins to recharge. This car I can't even leave my door open for 15 minutes with the keys out of the ignition?????
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If you did that right and you're drawing less than half an amp, then you need to look at your battery, alternator, or a bad connection between them then.
Take it to Autozone and have them test your charging system for free.
Take it to Autozone and have them test your charging system for free.
I was contemplating just getting a red top. It's a new battery but its a superlex. But then again it did it with a stock battery. But I don't think its a alternator issue because the car can sit for days and still start fine. I only have trouble with the car off. Thanks
I was contemplating just getting a red top. It's a new battery but its a superlex. But then again it did it with a stock battery. But I don't think its a alternator issue because the car can sit for days and still start fine. I only have trouble with the car off. Thanks
If you do replace the battery, don't get an Optima. They are very hit and miss now with most being junk. Odysseys are good, but very expensive. I have moved over to using Deka Intimidators and have had very good luck with them.
Have you had the alternator and battery tested? I know pulling the battery is a hassle, but maybe it could be load tested with the cables disconnected while it is still in the car.
TECH Regular
Joined: Nov 2009
Posts: 446
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From: Farmington Hills, MI
What open circuit voltage (disconnected) are you seeing when it's dead? Do the accessories still run, lights, etc when it won't crank?
It is possible that your new battery was "dead" when you got it. Most parts stores don't care for their batteries properly. If it has a decent voltage but won't crank you probably have an internal short in the batteries, a faulty starting relay, or the solenoid that engages the starter is going. If you have a multimeter that can read min/max voltages or a tool that can scan voltage, you can try and see what the battery voltage drops to when you try to crank. I think anything under 8V and you are SOL, and the closer the worse off you are.
It is possible that your new battery was "dead" when you got it. Most parts stores don't care for their batteries properly. If it has a decent voltage but won't crank you probably have an internal short in the batteries, a faulty starting relay, or the solenoid that engages the starter is going. If you have a multimeter that can read min/max voltages or a tool that can scan voltage, you can try and see what the battery voltage drops to when you try to crank. I think anything under 8V and you are SOL, and the closer the worse off you are.
