Please choose the correct solution to the question: how to charge riding mower battery

Solution1: Make sure the charger is off.    Hook-up the positive cable on the charger to the positive terminal on the battery.    Hook up the negative cable on the charger to the negative terminal on the battery.    Set the charger to the slowest charge rate.

Solution2: Make sure the charger is off.    Hook-up the positive cable on the charger to the negative terminal on the battery.    Hook up the negative cable on the charger to the positive terminal on the battery.    Set the charger to the slowest charge rate.

Answer format: solution1/solution2