Kia Battery Drain


#1

My sister owns a 2004 Kia Amanti. The battery will not hold a charge. The battery has been replaced several times. the alternator and regular and anything else that could drain the battery has been checked. All ground posts have been cleaned. At first the battery would go dead every 3 to 5 days but now you have to start the car every day or it will die. They say there is a 7ohm drain on the battery that can’t be located. The latest suggestion is to replace the wiring in the driver’s side door. Any idea what would be causing this?


#2

Somebody needs to perform a PROPER parasitic draw test

Parasitic draw is measured in amperage

So the draw isn’t 7 ohms

Perhaps 7 amps, which is gigantic

That would suggest a module not going to sleep, a light left on, etc.

“The latest suggestion is to replace the wiring in the driver’s side door.”

it sounds like the mechanic may be grasping at straws . . .

Did he say why he believes the wiring is the problem?


#3

The fact that it’s gotten worse could imply a short in a wiring bundle that is flexed and the bundles entering the doors are thus suspect. Agree this should be readily found by a parasitic draw test where an ammeter is imposed between a disconnected battery terminal and its battery post. Then remove fuses until the draw stops. If the door is suspected, start with fuses for all the functions controlled by the door control panel.


#4

Here is a link to a site that explains how to test for this kind of problem.

http://www.aa1car.com/library/battery_runs_down.htm


#5

Does this have an after market theft system? If so disable it. Has anyone dropped the rear seats and seen if the trunk light is lit or the glove box light is on?