How to Jump Start a Car : Connecting Jumper Cables to the Dead Car Battery


Hi, I’m Mark Blocker on behalf of Expert Village.
In this segment we’re going to discuss how to connect the cables to the dead vehicle,
the vehicle needing to be jumped. When you connect to the vehicle that’s being started,
you want to make sure that all accessories are off, keys off, headlights, nothing is
on whatsoever. You want to connect to the positive terminal first and you want to connect
the negative somewhere on the engine block. The engine block is the negative side of the
grounding system. The reason for this is if there’s a current drawing this vehicle, a
light on, a dome light, when I connect to this terminal it will cause a spark from the
energy being transfered. That spark could ignite the gases and cause the battery to
explode. If I connect over here to the engine and there’s a spark, it’s well away from the
battery. It also eliminates a potential bad connection on the negative terminal and cable
down to the engine. So we’re bypassing those two parts of the electrical system and going
straight to the engine cause that’s where the starter is connected. So we’ve got a good
solid ground right there with the starter on the engine and the positive will come down
through the system. Watch the next segment on charging the vehicle.

11 thoughts on “How to Jump Start a Car : Connecting Jumper Cables to the Dead Car Battery

Leave a Reply

Leave a Reply

Your email address will not be published. Required fields are marked *