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Battery Drain 200

uid 29404's pic
posted by  punk240 on  Wed Dec 23 08:48 CST 2009
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last visit: Mon Jul 14 15:23 CST 2014
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I am having a very consistent battery drain on my 92.
It seems to be very dependent on how often i drive it... I can let the car sit for 2-3 days and i'll either have a weak start or none at all.
I had a DieHard SUV battery in it until this drain just killed it altogether.
Got a new one 2 weeks ago and now the drain is back.

What are some possible items to check with a volt meter?

I leave the radio disconnected and the dome light switched off.
The dash clock runs real slow and i always have to reset it even with a fully charged battery - thinking this might be my problem with a capacitor going bad within it.

I've checked the wiring that was left over from swapping from AW70 to M47 and nothing is grounding.

What else could I look for?


EDIT - after going deeper into the searches of RWD i'm told there is a delay switch under the dash near the brake pedals that causes most drains... this is rather odd cuz there is a cylindrical metal relay-type device that was mounted to the Clutch Brake Block and it stayed hot constantly. This the Delay Switch?
--
'92 244 NOW w/ M47 (Hydra, turbo bars, bilstein, urethane bushings)








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    Battery Drain 200

    posted by  jon_h on  Fri Dec 25 03:37 CST 2009
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    last visit: Fri Oct 24 11:57 CST 2014
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    For me this has always been power door locks - frayed wire in the door.

    Threads in the archives about it.
    --
    240s: 2 drivers and some parts cars








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    Battery Drain 200

    posted by  oscarcat on  Thu Dec 24 12:17 CST 2009
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    last visit: Sat Jan 28 19:31 CST 2012
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    There is a light under the hood on the driver's side. Out of sight, out of mind. At least on my 88 and older, it has a 3 position switch. Be sure the light actually goes off when you close the hood. BTW yours is a very handsome wagon with those wheels.

    Story: On my very first Volvo, a 1971 164, the battery was dead the morning after I drove it off the new car lot. Dealer couldn't find a problem, sent me on my way again. Next day same problem. AAA gave me a jump and I drove around to charge the battery. Got home and parked it at dusk, went out an hour latter and saw light though the radiator, looked like a high rise apt. with everyone home. It was that darn light under the hood, the switch wasn't shutting it off and it drained the battery...
    --
    1988 245A. Past: 1979 245A; 1987 244 M47; 1971 164E








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    Battery Drain 200

    posted by  david hunter on  Thu Dec 24 03:00 CST 2009
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    last visit: Mon Jun 30 22:10 CST 2014
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    Normal way to diagnose a drain.
    Install a low wattage test bulb or multmeter set to amps in series with battery. If there is a drain then the bulb or meter will show it. Pull fuses one at a time till bulb/meter goes off. Now without guessing you know which circuit is causing the problem.
    --
    David Hunter








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    Battery Drain 200

    posted by  Trev29 on  Thu Dec 24 00:12 CST 2009
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    last visit: Fri Oct 17 05:56 CST 2014
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    Have your door locks been acting up? If so, may be a shorted or broken wire. Disconnect the plug by your left knee with the red/grn/blk wires to see if the drain continues.
    --
    1980 245 Canadian B21A with SU carb but electronic ignition and M46 trans in Brampton, Ont.








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    Battery Drain 200

    posted by  Ray S on  Wed Dec 23 11:07 CST 2009
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    last visit: Thu Oct 23 14:28 CST 2014
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    Get a test light. Disconnect your negative battery cable from the terminal. Put one end of the test light on the cable and the other end on the terminal. The test light should be lit due to the current of the drain. Now have a helper go in the car. With the door shut, pull one fuse at a time. When the light goes out, you know which circuit is causing the drain.







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