Do I connect the red or black jumper cable first?
Organize the jumper cables First, unravel your jumper cables. Separate them so there is a red and black clamp on each end of the jumper cables. Red is for the positive battery terminal, and black is for the negative terminal.
Which battery cable should be connected first?
positive terminal Connect the positive terminal first. Attach the red (positive) terminal to the positive battery post. Tighten the terminal with a wrench. Repeat the process with the black (negative) terminal.
Do you hook up the positive or negative first?
When disconnecting the cables from the old battery, disconnect the negative first, then the positive. Connect the new battery in the reverse order, positive then negative.” When you are replacing your car battery, It isnt always easy to remember the order in which to disconnect and reconnect the terminals.
What happens when you connect the positive and negative ends of a battery?
If you connect a wire between the two terminals, the electrons will flow from the negative end to the positive end as fast as they can. This will quickly wear out the battery and can also be dangerous, particularly on larger batteries.
What happens if you cross positive and negative wires?
Anytime two identical signals are mixed together with inverse polarity, the signals cancel out. In this case, one wave is positive while the other is negative, and vice versa. The result is silence. This is called destructive interference.