battery light coming on?

Question

I have a 96 Dodge neon.
The battery lights comeup and then goes off after couple of days..
This problem occurs...almost every 2 months..

The car mechanics says, the battery and alternator and everything is looking fine...
When they load test..it..or test drive it...they couldn't get to reproduce the efffect..
Not sure why it happens..

any suggestions..pls?

note:
I changed my battery, alternator almost 5 months ago...for some other reason...
and they are in very good condition...

I heat the car for at least 5-10 mins before I start and use headlights and radio...while driving..
is that all drinking more power juice?

Answer 1

it's an older model car,so naturally your gonna run into issues with it,from past experiance,after a car gets some age on them the warning lights might become defective,but there may be nothing wrong with the car itself.the old saying"don't fix it if it's not broken" is very true in your case!from your explination there has been no signs that something is actually wrong with the battery besides the light coming on.The light is very annoying;i know! so what i have done in this case is to cover up the light with a piece of black electrical tape so it's not shinning in your face makeing you feel something is wrong.just wait till there is a real problem before acting on it,otherwise your gonna rack up a huge mechanics bill trying to find out!This answer might not suit everyone,but has proven itself to me.wish you good luck!

Answer 2

If your battery is just a milliamp away on the good reading, then loading the electricity will drain it quicker. You battery will just boderline enough to give it a still good reading. I had this problem. Then I replaced it about a couple of months later, when it did FINALLY go out. Never had the problem again. You can charge the battery up, with a weak cell, but then after a while with all the accesorries own the cell can not hold the full charge. Imagine a glass with a pinhole leak. You can fill it up but you are slowly losing water.

But you say the battery and altenator are good. Now I presume you bought a new battery and not a used one, right.

Well I do not know what else to say. Next time they come on. Stop the car and CLEAN the battery posts and see what happens.

Answer 3

Do you drive only short distances most of the time? If so, you may just not be driving enough to let the alternator properly recharge the battery. If you do just drive short distances, try taking a "Sunday Drive" every couple of weeks. Run your car for an hour or more, to not only let the battery charge, but to allow the exhaust and other components to come up to normal operating temps. This will cut down on your maintenance.

Answer 4

So is this the unique battery? I doubt it because try to be on your 2d or third battery by technique of now, yet with the individuals asking questions in this web site you by no ability fricken understand! once you've blackened contacts on both the battery posts or on the contained in the cable clamps you've undesirable continuity and want to scrape clean the contacting surfaces. i do not understand in case you bumped off the cables once you charged the battery yet cleansing the cable clamps and posts might want to were performed earlier attempting to value the battery. you also want a charger able to charging at12 volt 10 amps and a minimum of 6 hours value time. a robust alternator will positioned out thirteen.7 volts at 2,500 rpm. If below thirteen volts i believe a nasty diode which could reason the problem-free to come back on.

Answer 5

Sounds like a faulty balast resistor, cheap and easy to replace. This device simply controls the power flow from the alternator to the battery, if the ballast resister is not reading the correct voltage it will illuminate the battery llight periodically.....

Answer 6

You may have a lose connection that pops out after it is heated. You are wasting fuel by heating up the car before driving it the engine is desighned to be be fully lubricated and have enough energy to run smoothly from start up.

Answer 7

check the alternator belt and make sure it is not slipping
it should not deflect more than 1 inch.
if it is looser than that then tighten it

also check all your connections to the battery etc, is there any crud and are they tight?

Answer 8

make sure the cables are tight , fuse is in etc . i had the problem too once ,just to find out that mice had eaten on the cables. and ended up replacing cable s

Answer 9

check your wiring an wiring on alternator

Answer 10

loose wire or it's grounding out by the sensor.