Is It Ok To Touch Car Battery Terminals. Always undo the ground negative first. Use a open end wrench to turn the bolts on the clamps counterclockwise to open them.
Clean any corrosion off of the battery and terminals with a can of spray-on battery cleaner. That really depends on whether or not the negative terminal is already connected to the carif nothing is connected not a big deal. Those wires like the terminal itself are considered hot or live because if they touch any grounded point of the car sparks will fly and if theres no fuse the wire can over heat and catch fire.
Then place each clamp over each of the terminals on the car battery.
Go touch both batteries terminals if you dont believe me. Nope you can touch em both to your hearts content. Since when its installed in the car the negative terminal is electrically connected to the cars body and the engine block this also means dont allow the positive terminal to. If you are referring to diesel or petrol cars touching car battery terminals is OK as 12 V can not electrocute an an adult.
