Connecting jump leads
Discussion
Right now. I'm going to show myself to be a bit of a buffoon here, but still.
Whenever jump starting a car, I have connected the leads in the following manner - negative terminal to negative donor, then positive terminal to positive donor. I figured that it was sound practice to earth the car prior to connecting the live leads.
However, reading the manual for my new car, it states connect the positive leads first, and also to connect the negative donor to a solid earthing point on the car
So, two questions really.
1. Why do you need to connect positive first
2. Is there an issue with using the car negative battery terminal as the earthing point?
Whenever jump starting a car, I have connected the leads in the following manner - negative terminal to negative donor, then positive terminal to positive donor. I figured that it was sound practice to earth the car prior to connecting the live leads.
However, reading the manual for my new car, it states connect the positive leads first, and also to connect the negative donor to a solid earthing point on the car
So, two questions really.
1. Why do you need to connect positive first
2. Is there an issue with using the car negative battery terminal as the earthing point?
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