Ok. So I have Carrera Crossfire e bike - it has SR Suntour 250W hub motor, 36V 11.86aH battery, what I believe is KT Clone Controller, Throttle, LCD3 - no PAS sensor(Want it to work on throttle only). The controller is rated for both 36V and 48V. The current battery seems to be too limited and cut's out under max throttle. I believe the throttle is too sensitive as well - it's hard to throttle slow enough to prevent it from cutting out. Now this is where my electrical engineering knowledge stops - I need to either limit throttle or limit the controllers output? C setting forlimitting Amps and Voltage are not doing any good - not too sure how to limit it to the level I need. It could be the Motor as well - 250W is not a lot I know. Plan on getting another Hub motor(750W) and 48V battery in future but not anytime soon so would like to get the current setup running. Have also replaced the current controller with exactly same make model - just to eliminate any possible issue with the controller itself. Just to clear the posibility of faulty hub or battery - it works like a charm with the original Carrera controller. Any suggestions?