Posted by BurbGuy on March 11, 03 at 09:11:23:
In Reply to: Won't Start After Sitting for Just Two Days posted by David on March 10, 03 at 15:48:24:
The 2002 factory manual says the parasitic load (in mA) should be no more than 1/4 of the reserve capacity of the battery (in minutes). For example, a battery with a 100 minute reserve capacity rating should not be loaded with more than 25mA of parasitic load.
When you say ".18 to .22 volts of draw", do you mean amps of current? If so, then you're probably drawing too much, according to the standard above. The factory manual says that the reserve capacity of my battery is 115 minutes. This suggests that the parasitic load should be less than 28.75mA. I would expect the reserve capacity of other batteries to be in the same range.
BurbGuy
: Having a weird electrical problem. AC Delco battery about one year old & the sight glass stills shows green. Had this same problem with the previous battery, traded batteries in my wife car to see if that was the problem.
: It’ll start every day unless it sits over the weekend. For the last several weeks, have tried a number of different ways to test this. If I park it Friday night after work and don’t use it again until Monday morning, no go, requires the battery charger before it starts.
: It will start after one day of sitting, but not after two days. Tested the battery with my multi meter and saw 12.1 volts on this morning, but the starter would not turn over, just engaged and kinda grunted, then stopped.
: Last week, checked the draw on the battery, getting .18 to .22 volts of draw with the key off, doors closed, under hood light removed and all lights out. Cables are snug on the battery terminals, using a torque reduction starter as the big style went south on me last summer and would only work when cool.
: Did a load test on the battery, and although this test isn’t conclusive, it passed as good.