Where do you mount jumper cables?

0:253:54How To Attach Jumper Cables - YouTubeYouTubeStart of suggested clipEnd of suggested clipOur negative battery cable to a metal component you dont want to hook it up to the battery terminalMoreOur negative battery cable to a metal component you dont want to hook it up to the battery terminal. Because if its a bad battery in some cases there could be fumes.

Where should I clamp negative jumper cables?

Clamp the negative cable (black) to the negative terminal of the good battery. Clamp the other end of the negative cable to a clean metal part of the engine (like a bolt head or bracket) in the car with the weak battery. Keep the clamp away from the battery, any moving parts and the fuel system.