It is very easy to be fooled when trying to diagnose a draw. Most modern cars will make that spark, and will draw anywhere from a few tenths to a full couple amps, for up to 20 minutes in some cases ! This is powering up modules and so forth, which then are supposed to go asleep and settle into a milli-amp draw. The only way I have found to be accurate in this, is to use a sensitive amp meter that allows current to flow, at least 10 amps minimum. You cant rely on a test light or the fact that it sparks to really tell you whats going on. Fluke has a good meter for this. If you exceed that 10 amps by turning on the lights or key, the fuse in the meter blows. Hook it up between the battery post and cable end, then walk away for 1/2 hour or so and come back and observe the meter reading. Has to be very low draw, as in milli-amps. A .1 or .2 amp reading will bring a good battery down in a day or two.
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Today's Featured Article - Box Plow Blues - by Tom Schwarz. One of the first implements most tractor owners obtain is the box plow. For very little money, this piece of equipment promises to plow and flatten any hill or vale on your ranch road or farm. At least that's what I thought! As simple as a box plow appears, it can be rather challenging to make work correctly. In our sandy soils of Florida, traction is king. You can never have wide enough tires or heavy enough weights to get all the traction you want … unless you own a monster tractor. U
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