I have read the replies and if a person witnesses something, you just can't argue with that.
However. Putting a 1 1/4" wrench across the +/- terminals has the amperage capacity to get the battery really hot really fast. Potential for explosion......excellent.
However, a battery charger with usually something like 20 AWG wires connected the wrong way has no mechanism to blow the battery up......discharge it and attempt to recharge it in the opposite direction, but blow it up.....I don't think so.
On blowing out the alternator diodes by polarity reversal, 20 awg wire is rated for 5 amperes in short distances. Those diodes are good for 1/3 of 120 amperes for a 120 ampere alternator. Yes connecting a battery in reverse order, or an industrial charger, like an auto repair shop, or service station is surely a kill the diodes mechanism, but the chargers that most folks have....I don't think so.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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