Finished building my 25mph Ebike

[snellemin]

Building that ghetto pack was a learning curve. Seeing what the little batteries can do under max load for 20 minutes. I know what they can do in tools, flashlights, laptops and RC. But I never knew what the capability would be in a bike for example. I can always use those packs in my kids power wheels or stick them in my souped up flashlight. I made my home-work-home commute without needing to recharge. I used up 6000mah and voltage dropped enough to trip the low voltage cutoff intermittenly. So now I know the cheapo ebay setup does have a low voltage cutoff and a over voltage protection. So the Ebay setup is not so bad afterall.

Have no fear, because my new controller is being shipped to me. Bad boy is suppose to run sensorless and support high rpm's. Also capable of running 100V and currently set at 45A max. Controller is set to run on 12s and 16s for now. But I have enough to run 22S 5000mah. But 85V will require some plugs and wire upgrades. Not something I would want to mess with right now.

[JERRY2KONE]

Well its good research on your part and will save a lot of us time and money trying to figure these things out on our own. Reading through your E-bike experiences should help out a lot for anyone trying to figure out the best way to go on their own E-bike porject. I know it is helpoing me out a lot. I really do like the cheap Chinese hub/wheel kit for sure, and those Prismatic batteries are just awsome, but the price is pretty steap for the average Joe. If there was something similar technology wise for half that price that would be the way to go. I do like their smaller Lipo batteries that look like lawnmower batteries. That would be another option, but anything we do outside of the prismatic cells will involve using a much larger setup(weight & size). I sure wish that CC would start making Lipos for R/C applications. That would be very cool.