Not sure whats up.When I was out After running the engin for about 2 hours, stopped and had lunch.Went to start the motor and when i turned the key on got an alarm and red light came on at key that says oil pressure. The engin not running at the time.Had plenty of oil. Maby seprate,The batterys stay on a charger and the boat almost didnt start.tester says its barly in the green. New to this boat , Thirdly , When the charger is on Does the battry switch need to be on both? Maby just bad batterys , but could be me....Thanks for any help.Steve