Hi I'm new to the golf cart forum and I need some help. I have a 2005 electric EZGO 36 volt series golf cart. I took my batteries (original) out of winter storage in my basement and put them back in my cart last Friday. The cart ran fine that night without a charge and the next morning after an all night charge it ran fine for about 15 minutes and just shut down while it was moving. The headlights and th backup beeper work but it would not move. I cleaned the terminals and cables (original) when I reinstalled the batteries. Any ideas on this problem? Thanks