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.
Lawn mower batteries typically last three or four seasons. The 12-V battery on an Exmark zero-turn mower powers the electrical systems of the mower, including the electric start feature. If the mower sits for an extended period of time, especially during storage, the battery's charge can run low. A low battery doesn't hold the charge that's needed to start the zero turn.