Question about 1986 Cadillac Fleetwood
You can check with a 12v test light or an amp meter. If you take off one of the battery terminal ends, (preferably the negative) and run the test light or amp meter in series from the battery post to the cable end, see if it lights up.
If it does, then you will want to start pulling fuses one by one until it goes out. When it goes out, then that is the circuit that is causing the draw. If not, then the battery is bad, as it can't hold a charge.
The recommendation for maximum parasitic drain is around 30 mA (0.030 amp). A typical drain today actually falls into the 7-12 mA range, even though some vehicles do approach the maximum. Multiply the drain (in amps) by the time (in hours) the battery sits without being recharged. The result is the amount of AH consumed by the parasitic drain. The actual drain may be small, but over time the battery grows steadily weaker.
Just remember to keep all of the doors closed when you do this and disconnect the hood light if there is one, thanks
Posted on Apr 15, 2014
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Posted on Jan 02, 2017
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