Posted by Janicholson on December 28, 2021 at 11:11:25 from (24.240.46.228):
In Reply to: battery drain posted by cool hand on December 28, 2021 at 10:30:54:
An easy way is to do it in steps. First step is to look at all the lights and accessories to be sure they are off. Next: remove the positive battery terminal and put the leads to an amp meter on the post and on the terminal you removed. Many Multi Meters have 10 amp rated settings, usually requiring putting the leads or one lead in a different socket in the meter. The normal draw is less than 150 milliamps. If more like 300+ ma. it will drain the battery in a week or so. Next pull fuses one at a time while watching the meter. (the first attachment of the meter could draw more, but in 2 or 3 seconds, it should be at or below 150ma). Always put fuses back into the block as soon as it is pulled so they stay organized. The radio fuse will lower the reading some due to the drain of keeping the station presets. There are heavy fuses that protect the alternator and possibly the air conditioner system that are different size, and possibly under the hood. When the amp draw drops to at or below the 150ma range, you found the circuit. Then tracing that to its end use, and disconnecting it there can determine if the issue is in those wires, or the device. A test light can be used in stead of a meter, it might be easier to see when pulling fuses. Jim
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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