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.
Use two 12-volt deep-cycle marine batteries and connect as follows: 1. Connect the BLACK wire from the trolling motor power cable to the negative (-) battery terminal of one battery (battery B). 2. Connect the RED wire from the trolling motor power cable to the positive (+) post of the other battery (battery A).