I have been using a Crystalyte 36-72volt 35amp controller for a couple of years now very reliable and one of the few controllers I have that has been truly plug and play used along side a cycle annalist has been faultless, I deferentially recommend this over engineered controller, not cheap but I have a draw full of cheap Chinese controllers that have failed over the last 5 years.I am looking into replacing the controller in my ebike so I can move from a low capacity Nicd battery to a higher capacity (and lower weight) Li setup. I have heard that Crystalyte controllers are popular, but I wanted to get a few other opinions.
Thanks
I have yoused heinzmann motores at higher than stated volteges have run 24v heinzmann at 36v and 36 at 48volt without any problems Brushed controllers should be interchangeable without to many problems as long as the voltage rating is the same as the battery voltageI am really at a loss. I would really like to get this bike working, but I am lacking in knowledge at the moment.