Why it is necessary to remove first the battery negative cable?
Remove the negative terminal first. This very important. By doing this, you are disconnecting the battery from your car’s chassis. If you remove the positive terminal first and your metal tool makes contact with another metal part of the vehicle, you could cause a short in the system.
What do I need to disconnect a negative battery?
Look for the black cable attached to the battery. There should be two cables, one black and one red. The red one is positive and should not be touched at this time. These cables attach to the battery with a spring clamp that is easily squeezed, opened, and removed or is clamped with a squeeze bolt, or even directly bolted to battery terminal.
Why do you remove the negative battery terminal first?
By removing the negative battery cable you are disconnecting the battery from the chassis of your vehicle. If you begin to remove the positive side before the negative and your wrench would make contact with any part of the vehicle, then you could cause a short in the system.
Can a negative battery be installed on a positive battery?
Roadmaster specifies that the Automatic Battery Disconnect, # RM-766, be installed on the positive side of the battery for proper operation on your vehicle’s electrical system. Therefore, installation of this part on the negative battery is not recommended by the manufacturer.
What do I need to do to unplug my car battery?
Always discuss this with your dealer prior to disconnecting your battery. In order to disconnect the battery, all you have to do is remove the cable from the negative port. Do not let the negative and positive cable ends touch under any circumstances.
How do you remove a negative battery from a cell phone?
1) Remove the negative battery cable. Move the cable end away from the battery post. Safety Tip: To eliminate any chance of battery arching, after removing the battery cable, wrap a rag around the cable end and place a wrap over the battery terminal.
What happens when you remove cable from car battery?
Removing Cable From Car Battery So, disconnecting the car battery to reset the (PCM) on late model vehicles; can do more than just erase the keep alive memory. It can also erase vital learned information that is; absolutely necessary for other modules to function normally.
Do you need to know before you disconnect a car battery?
So, before you disconnect a car battery; there are things you need to know. Battery voltage MUST be maintained to the (PCM) and other modules; while the battery is disconnected. NEVER: disconnect the car battery; while the engine is running or the ignition key is turned on.
Do you leave the cables connected to the battery tender?
I generally leave the cables connected with the Battery Tender connected and running too; as a matter of fact the BT came with ring terminal leads designed to permanently mount to bolt type top mount terminals.