At 179K, my Ody's battery will go dead overnight. Happened first two Sundays ago and I thought one of the blasted reading lights had been left on again. Put it on the charger after work, but no lights on. Battery is 5 years into an advertised 7 year life, So I took it to Autozone and had them test it. They hooked their cart up to the van and pronounced the battery and charging system in good order.
I chalked it up to a fluke and kept driving it. It was fine all last week, and then Sat. AM it was dead again. Charged it during the day Saturday and it started fine. It sat in the driveway and on Sunday AM it was dead again. Uh-oh.
Charged it several hours on Sunday and checked it with my multimeter. I pulled the neg. battery terminal off and put my meter, set on amps, between the cable and the battery. It read 3.2 amps, so it seems I've got a short.
So, my questions are:
- What is a normal 'at rest' current draw for a '99 EX? The clock and maybe some other things draw something, right?
- Also, I read here that some cars computers will 'fire up' when power is connected, causing a momentary current. Is that true on the Ody? How long do I need to wait to get a measure of the real drain?
- Anyone else experience a parasitic battery drain in an Ody and what was the cause?