Which Battery Terminal Do You Disconnect First. What happens when you disconnect the negative battery cable. Ground one off first and on last for safety against shorting.

Remove the ground which is the negative black -. When swinging a wrench connected to the positive termi. First things first your vehicle should be off.
Connect the new battery in the reverse order positive then negative.
You should always remove the NEGATIVE terminal cable first. Negative is first to remove and last to install. What Happens if You Disconnect The Positive Terminal First. Electrically it doesnt matter but there is a good reason to disconnect the ground first then the positive and when reconnecting- to connect the positive first and then the ground This is because if you disconnect the negative first and you c.
