Elect 101 for this dummy! :)

[vesparex]

Good morning guys! I have a question.

1968 Bronco. New Centech harness installed a little over a year ago. All stock except I installed a 3 gauge cluster for oil/temp/volts. The original gauges in the speedo are not used. Stock alt and points dizzy. New voltage reg. Now, a new battery.

I have had a draw. 3 amps registering on my volt meter. Didn't realize it at first till I finally killed my battery. Appeared to be intermittent. It would kill my battery after sitting 3 days or be OK for a month. Finally after replacing the battery and finding the new one dead again I began looking for a draw.

Disconnected the negative batt cable. 3 amps between the neg and post. Began puling fuses, one at a time. Still a draw. Called Centech. Very nice peeps. They asked that I disconnect the alt, in case a diode or something was bad. Still had the draw. They mentioned that EVERYTHING is fused except the hot wire that loops through the original amp gauge and continues to the fuse box. I then found I had USED that wire to pick up power for my aftermarket tach. BINGO! I found the issue. Disconnected that wire and excitedly checked to make sure the draw went away. Well, here is where I need your opinions/guidance.

I still read a draw between the neg cable and post, only now, as the meter probes are on the cable and post the draw lowers to about .09. Lift the probes, wait maybe a minute and re-touch, there's the draw but again it begins to lower.

Is this normal? This is where I am stymied.

Duane

[Viperwolf1]

90 mA is not too bad. Maybe radio memory. Probably take a month to kill the battery. Pull the fuses again and see what it is.

[vesparex]

90 mA is not too bad. Maybe radio memory. Probably take a month to kill the battery. Pull the fuses again and see what it is.

No radio. And the confusing thing for me is the initial 3amp read that counts down in about 5 seconds to that 90mA.

Duane