Hi I have successfully converted my bicycle into electric. I am using the MY1016Z3 24V 350W motor. I am using two automobile batteries, 12V 7AH connected in series to form 24 volt. After running for few hours, motor runs continuously without any input from throttle. The controller has gone defective?!!! or short circuited. Have I fried my controller because I am using unregulated current/voltage from the two lead acid batteries. Before frying up another controller, I want to know what should i do to prevent this. Please help!!!