The order in which you connect the terminals has nothing to do with preventing electrical damage. The reason why you're supposed to connect jumper cables in a p

The order in which you connect the terminals has nothing to do with preventing electrical damage. The reason why you're supposed to connect jumper cables in a particular order is for safety. When you connect just the positive, it doesn't matter if you accidentally brush the other end of the cable against the body or ground of the other car. Then the only thing left to connect is ground and if you accidentally brush the ground lead up against the body then it isn't going to matter as you're trying to connect that lead to ground. Also, the reason why you connect the last lead to a well grounded part of the engine away from the battery on the god car is because that's the only connection that creates sparks. Sparks around a bad battery are a bad idea. Batteries regularly create some Hydrogen and Oxygen gas, normally it doesn't produce that much at all and it gets vented out of the battery but with a bad battery it might have very little electrolyte left and it might have multiple cells filled with a bit of acid and a lot of explosive gas. If that spark ignites any explosive gases in the battery it will probably crack apart the plastic casing and shower you with battery acid.