Re: Loss Of Tach After Battery Change
Well, I wonder if this idea might have come from the safe way to jumpstart a vehicle? Connect/disconnect ground (FRAME, not battery terminal) last to keep from sparking near the battery because of the hydrogen gas coming from the battery? Now that is a wise notion, since there will be a big spark when that arraingment is made. Explosions and fire tend to ruin the outing. You got me thinking- it would be a good idea to make sure all the load is turned off before the connect/disconnect to minimize sparks- turn the battery switch off is the easiest way.<br /><br />I've dabbled seriously with electronics for years and have never otherwise seen a reason to favor one side over the other. Polarization of some devices is true enough (like rectifiers, transistors, some capacitors, IC's), but shouldn't otherwise make a difference which cable is first disconnected so long as they are not cross connected, as was pointed out. Doggone if I didn't go and prove that true myself a couple years back. Sure does pay to pay attention, doesn't it! I bet at least half of us have gone and done that, or are JC and I the only ones going to fess up?
