How To Disconnect And Reconnect Car Battery. Step 1. Turn off the cars ignition.

To be more secure remove the cables bolts and clamps on the negative pole first and then proceed to the positive pole. Check that the keys are out of the ignition and the ignition is not in the start position. Disconnect the - ve terminal first.
Turn off the cars ignition.
Clean and inspect the connections. As you are running your vehicle at some point the need may arise for you to disconnect the battery terminals. We need to do this when changing battery installing gadgets such as voltage stabilizer grounding cables etc. You first disconnect the negative terminal which is connected to the cars chassis.

