How To Disconnect Battery Cable. The negative terminal may be marked with a minus - symbol or it may be unmarked. I cant see how this would matter.
Make sure you disconnect the negative terminal first. For safety purposes always disconnect the negative cable first. Use your wrench to loosen the nut that connects the negative terminal of the battery then remove the nut completely.
Clean the battery posts and terminals with the post and terminal cleaning tool so you have a good connection when youre done.
Disconnect the negative battery cable. Disconnect the negative battery cable. In order to disconnect the battery all you have to do is remove the cable from the negative port. Disconnect the Battery Cables.
