Recently had problems with controlling the speed of my golf trolley (mocad). replaced switch, gear box and problem the same. finally replaced controller and the problem was resolved for about 6 weeks. now the trolley has a mind of its own. it can accelerate or slow down at any time when in motion without touching the switch. I am guessing its a controller problem perhaps water has got in or faulty controller. I am sure battery, charger, gear box, switch are all ok. I wonder what the problem is as it is getting worse, my golf trolley is out of control on the golf course with these sudden surges of acceleration/ deceleration. its dangerous actually.
eamonn, October 2012