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Something is draining my 64 Riv battery, any suggestions?


Sweet64rivi
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ISO help trying to figure out what is draining my battery.  My 4 year old battery went dead so I bought a new one.  Car turned over and ran fine.  Battery had a full charge when I parked it but was completely drained in a week.  Any idea on what i should look for that could possibly be draining my battery?  

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Pull a battery cable and put an ammeter inline.  Note the current draw.  Pop out fuses one at a time until the draw drops.  Remember that the clock is always drawing power; you might want to pull that fuse before you take the initial reading.

 

Also, make sure that the ignition switch was in the LOCK or OFF position when you pulled out the key.

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Also, if you have a power seat, the power seat switch is a prime suspect. To find the drain, you need to disconnect the negative battery cable

from the battery and put a test light or amp meter between the disconnected cable end and the battery post. Disconnect things that have power with the key

off until the test light goes out or the ampmeter reads zero amps. The component that you disconnect to make the test light go out is the source of your drain.

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I had a '63 one time that would drain the battery, sometimes overnight.  The way I found it was to disconnect the neg. terminal & then touch the cable to the post.  I could hear a clicking noise. Turns out when someone wired the car instead of putting the power wire to a keyed source it was connected to a source of power all the time which would drain the battery.

ALL the suggestions offered are relevant.

You NEED  to start somewhere as NOBODY has a magic wound to help figure out a problem over the internet without being there.

Again, my nickels worth.

 

Tom T.

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All good advice, but I always start with the method KongaMan posted, moving on to some of the other ideas if necessary. I use a test light instead of an ammeter (multimeter) at first, to make sure I'm not gonna blow the fuse in the multimeter. Then if the lamp only glows dimly or not at all, I move on to the ammeter (multimeter).

 

In addition to the trunk light, check the glovebox light if it has one. Any bulb you cant see is suspicious.

 

As for the clock, if it is the "Borg" style usually used back in those days, it shouldn't be a constant draw. It should just pulse now and then. If it is a constant draw, the points are stuck and you probably just found the issue.

 

Even though the clock doesn't draw constantly, every little bit runs the battery down some. Cars with clocks run the battery dead faster than ones without, and a old car with a mechanical voltage regulator and no clock should have no current draw at all. There is only the self-discharge rate of the battery to worry about. That is a good argument for pulling the clock fuse, or getting a battery disconnect switch. If you need the clock to work, maybe a battery maintainer.

 

 

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