 Clock Draining Battery |
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| AvalonFal |
  Jun 6 2013, 11:37 AM
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#1
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Member  Group: Members Posts: 485 Joined: 3-July 05 From: Southern New Jersey Coast Member No.: 4,367 Region Association: MidAtlantic Region  |
I think I've traced a battery drain back to an aftermarket clock on my '74 2.0. The clock is 90% stock looking, fits very nicely in the original console location and keeps great time, so I want to keep it installed and connected
The electrical schematics appear to show the black power lead to the clock coming from the seat belt/buzzer box under the passenger seat. Can I simply run a new wire from there to the clock? Or is there more to it?? Paul |
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| SLITS |
Jun 6 2013, 12:19 PM
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#2
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Run it from the fuse panel .... non-switched power.
Must be one hell of a clock to drain your battery. |
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| Dave_Darling |
Jun 6 2013, 12:23 PM
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#3
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914 Idiot Group: Members Posts: 15,151 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Put an ammeter between the clock and ground. How much current is it pulling?
Replacing wires usually does nothing for a slow current drain. Fast drains usually leave evidence, like scorch marks, melted areas, sparks, and sometimes fire. --DD |
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| AvalonFal |
Jun 6 2013, 03:00 PM
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#4
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Member Group: Members Posts: 485 Joined: 3-July 05 From: Southern New Jersey Coast Member No.: 4,367 Region Association: MidAtlantic Region |
Battery would go dead in a few days of non-use. A quick 15 minute charge and the car would start right up. So, I figure something is draining the battery.
Before I pulled fuses, the reading on my meter jumped between 4 milliamps to 17 and even 19 milliamps when connected between the negative battery post and the disconnected negative cable. The digital readings just continuously jumped to random numbers between 4 and 19 every second or so. When I removed fuse #11 (last 8A between the 2 16A fuses), the meter read a steady 2.5 milliamps (radio presets?). I replaced the fuse and began disconnecting items on that circuit (interior light, turn signals, etc). When I disconnected the clock, the meter reading went back to the 2.5 milliamps. With the meter between the clock and the clock power lead, the readings jump again between the 4 and 19 milliamps. Currently (IMG:style_emoticons/default/smile.gif), I have all the fuses in place and the clock disconnected with a fully charged battery to see if it loses anything overnight. There's something screwy with the clock, but I don't want to discard it because it looks good and keeps accurate time. Hope this helps someone help me. Paul |
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