What bat. and speed controler for twin 300's?
I 've got a swift racer with a pair of Graupner speed 300's installed and I need some advice on what kind of batteries and speed controller I could use with this combo. I've got an 18 amp Kotronik speed controller and a 9.6v battery pack of sanyo nimh AA size at 1850 mAh. I've tried these but the speed controller cuts the power just above half throttle and the batteries get really hot. That happens when the motors are wired in parallel. When the motors are wired in series everything works fine but power seems marginal for the model. I have no idea what is going on. I'm really new to electrics and none of this makes sense to me. Any suggestions would be very much appreciated.
Thanks
George C