Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.Optimaman
11-24-08, 09:50 PM
Hey guys, I'm hoping you guys could help. In the interest of safety, I've downgraded from 74 volts to 37 volts (lithium polymer voltage). I've got a new controller which is the digital variable 36-72 volts controller and in addition have gotten the digital readout that measures amps, volts, etc.
The problem I'm having is that the digital controller has a tendency to power-down quite noticeably when 50 amps is surpassed which is quite easy to do. Even at max speed of 30ish mph, when I'm sitting upright with a jacket on, it's pulling about 50 amps due to wind resistance/slight uphills.
So, I need to raise the amperage capabilities. Now, the question is, can I simply solder more FETs to double the capacity or is there some other electronic circuitry that I need to play around with in order raise the amperage limits?
Would it be more cost effective just to buy a 200 amp bike controller? How do I go about finding an adapter for the hall sensors and throttle? Any help would be greatly appreciated.
-Young
The problem I'm having is that the digital controller has a tendency to power-down quite noticeably when 50 amps is surpassed which is quite easy to do. Even at max speed of 30ish mph, when I'm sitting upright with a jacket on, it's pulling about 50 amps due to wind resistance/slight uphills.
So, I need to raise the amperage capabilities. Now, the question is, can I simply solder more FETs to double the capacity or is there some other electronic circuitry that I need to play around with in order raise the amperage limits?
Would it be more cost effective just to buy a 200 amp bike controller? How do I go about finding an adapter for the hall sensors and throttle? Any help would be greatly appreciated.
-Young