The Truman Doctrine arose from a speech delivered by President Truman before a joint session of Congress on March 12, 1947.
Positive First. When installing a mower battery, always connect the positive cable first. The positive cable is red. It attaches to the battery terminal post marked with a plus sign, the letter P or the word POS. Attach the negative cable last. The negative cable is black.
Which battery terminal first. I am curious to which battery terminal should I take off first, positive or negative? When changing a battery I have always taken off the positive first followed by the negative, but when helping a neighbor with his car yesterday, he took off the negative cable to cut power to the electronics.