500a Car Auto Emergency Battery Booster Cable Car Battery Jump Wire

How to connect First, the red clip is placed on the positive pole of battery of the "the rescued car", the other red clip is placed on the positive pole of battery of "the recovery car".Then, the black clip is placed on the negative pole of battery of the "the rescued car", the other black clip is placed on the negative pole of battery of "the recovery car".Finally, to start "the recovery car" and then start "the rescued car". How to remove First remove the black wire from "the rescued car" and then remove the black wire from "the recovery car"; remove the red wire from "the recovery car" and then remove the red wire from "the rescued car".