Question about 1998 Kia Sephia

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My batterys dont charge after a long run or short i hasve to recharge them to start the car i have checked them with a batterys tester and they are ok but something is drainning them or not charging them when i drive my car please help i have a multi meter and am a electrician by trade my car is a pajero 2.6 turpo intercooler 1986

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Could be your alternator belt is not tight enough. good luck.

Posted on Dec 10, 2008

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Replace your alternator, chances are it isnt working properly.

Posted on Dec 06, 2008

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Check voltage at battery before you start, then start & check voltage while running. Obviously your battery reading should start climbing to 13.5 - 14.5 VDC when engine running, otherwise alternator is defective, unless that car has an external voltage regulator on it. Make sure your alternator belt is in good shape & tight, and all connections at battery, & alternator are clean & in good shape. To find a battery drain when vehicle is shut off, use a 12vdc test light connected between positive connection & battery post. If the lights on, you have a drain, & start removing fuses to find the culprit, or remove all & start putting them back in until light comes on bright. Now you've isolated the circuit causing the draw. should give you an idea where to look. Remember your radio will have a constant small draw for memory function.

Posted on Dec 06, 2008

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Charge the Battery overnight with an electrical trickle charger. Make sure the Negative and Positive Cables have been removed completely from the Battery and not touching the post during the recharging process.
Clean the Battery Post and the Connectors with a Battery Brush available for about $2.00. All metal should be nice and shiney!
After an overnight charge: you can use your Float Bulb Battery Tester. Remove the Battery Caps and check each individual cell (hole). More than two bad cells in a Battery = a new Battery. Be careful as the Battery contains ACID.
Reconnect the Battery and Start the Van.
When the Van has Started - Keep the Engine running and Remove the Negative Cable from the Battery.
If the Engine dies, it is the Alternator that is bad and needs to be replaced.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

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2006 Toyota Rav 4-My battery went from fine to dead in :45. Help.


Answering your questions in order:
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  2. Yes; short trips and lack of use will kill a battery over time.
  3. Yes; Here is a link to the basics of checking a charging system http://www.aa1car.com/library/charging_checks.htm
In summary, most should get more than 3 years out of their battery. You've already determined that the acid levels in the battery are good (most don't even check for fluid levels). Constant charging and discharging will kill a battery and this isn't apparent in your case.
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1 Answer

Seems to be electrical problem


What initiated the need for jump starting? Is the alternator charging? Has the battery been checked?

To check the alternator, once the engine has been jumped and is running, remove one of the battery post connections. If the engine dies, the alternator is not charging the battery, and the symptoms you describe are the on-board computer going through low voltage spasms until sufficient electrical power to operate the engine / tranny is drained and the car dies.

If the car continues to run with no battery attached, the alternator is charging - - - and I would recommend removing the battery and having it checked and (if good) recharged to full capacity. I would also recommend having it charged even if the alternator is the problem just to delay the onset of the low voltage problems. The car should operate normally for a few miles before the battery drains too low after a full recharge, enabling you to get it to a shop for alternator service / replacement.

If you attempt replacing the alternator yourself, make sure the battery is disconnected prior to starting the job. Saves blowing up good stuff by accidental short.

Hope this helps and good luck!

-WB.

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