klutchdust wrote:
I wouldn't use the positive side as a disconnect it may arc unless you remove the ground wire first. With todays sensitive electronics it may matter.
When installing a battery or jump starting a vehicle always install the positive side first then the ground, this will eliminate arcing. If finished jump starting or removing a battery always remove the ground first , this will eliminate arcing.
Really? If there's a voltage potential, a complete circuit, then there's a possibility of arcing. What makes you think that the negative cable and negative post on the battery can't create an arc? The electrons don't care where you complete the circuit.
You remove the negative cable first because you're using a wrench to loosen the cables. If you hit a metal part of the car with the wrench while loosening the cable, no harm, the car is grounded to the negative. If you remove the positive first and touch a metal part of the car you create a short circuit through the wrench, not good.
When jump starting a car you hook the positive cable to the battery first. No arcing because the negative cable isn't hooked up, not a complete circuit. You then hook the negative cable to a metal part of the car or engine not the battery. If it does cause an arc it's not near the battery and unlikely to ignite any gases coming from the it.
